SaraP
710 lines
26 KiB
C++
710 lines
26 KiB
C++
/*****************************************************************************/
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/* */
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/* Copyright (C) 2003--2025 M. Held */
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/* */
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/* This code is not in the public domain. All rights reserved! Please make */
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/* sure to read the full copyright statement contained in "README.txt" or in */
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/* the "main" file of this code, such as "main.cc". */
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/* */
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/*****************************************************************************/
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/* */
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/* Written by: Martin Held */
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/* */
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/* E-Mail: held@cs.sbg.ac.at */
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/* Fax Mail: (+43 662) 8044-611 */
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/* Voice Mail: (+43 662) 8044-6304 */
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/* Snail Mail: Martin Held */
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/* FB Informatik */
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/* Universitaet Salzburg */
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/* A-5020 Salzburg, Austria */
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/* */
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/*****************************************************************************/
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/* */
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/* get standard libraries */
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/* */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <ctype.h>
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#include <math.h>
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#include <float.h>
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/* */
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/* get my header files */
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/* */
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#include "vronivector.h"
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#include "vroni_object.h"
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#include "fpkernel.h"
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#include "defs.h"
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#include "ext_appl_defs.h"
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#include "io_dxf.h"
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#define LINE_LENGTH 1024
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#define NEWLINE '\n'
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#define CARRIAGE '\r'
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#define InitBBox \
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{\
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bb_min.x = bb_min.y = DBL_MAX; \
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bb_max.x = bb_max.y = - DBL_MAX; \
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}
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#define IsSpace(x)\
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((x == ' ') || (x == '\t') || (x == '\r') || (x == '\n') || (x == '\f'))
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#define SkipUntilDXFCode(input, code, string, dxf_code) \
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{ \
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do { \
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH)) \
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!"); \
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} while (atoi(code) != dxf_code); \
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}
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#define SkipUntilDXFString(input, code, string, dxf_string) \
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{ \
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do { \
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH)) \
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!"); \
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} while (strcmp(string, dxf_string)); \
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH)) \
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!"); \
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}
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vr_bool ReadNewLine(FILE *input, char *line, int size, vr_bool read_string)
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{
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char *s;
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int i;
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do {
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s = fgets(line, size, input);
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if (s == (char*)NULL) return false;
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i = ((int) strlen(s)) - 1;
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while((i >= 0) && IsSpace(s[i])) {
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s[i]='\0';
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i--;
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}
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if (i >= 0) {
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while (IsSpace(s[0])) ++s;
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line = strcpy(line, s);
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}
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else if (read_string) {
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i = 0;
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}
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} while (i < 0);
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if (i < 0) return false;
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else return true;
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}
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vr_bool ReadNewDXFPair(FILE *input, char *code, char *string, int size)
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{
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if (!ReadNewLine(input, code, size, false)) return false;
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if (!ReadNewLine(input, string, size, true)) return false;
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return true;
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}
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/* */
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/* This is a >>VERY<< rudimentary interface for reading AutoCAD DXF files. */
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/* Note that this interface is not as general as it ought to be. That is, */
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/* likely it will cough on lots of DXF files. Currently, it supports POINT, */
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/* LINE, ARC, CIRCLE, POLYLINE and LWPOLYLINE entities, including "closed" */
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/* flags and bulge factors for the latter two entities. It does not handle */
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/* BLOCKs or INSERTs or LAYERs, or any other codes that turn objects on or */
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/* off, or that move or resize them. Also, this routine does not care about */
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/* z-coordinates, and it does not support binary files. */
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/* */
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void vroniObject::ReadDXFFile(char input_file[], vr_bool *new_input)
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{
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FILE *input;
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char code[LINE_LENGTH+1];
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char string[LINE_LENGTH+1];
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int dxf_code, i;
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double xc1 = 0.0, yc1 = 0.0, xc2 = 0.0, yc2 = 0.0;
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double rad = 0.0, bulge = 0.0, old_bulge = 0.0, s_a = 0.0, e_a = 0.0;
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vr_bool xc1_set, yc1_set, xc2_set, yc2_set;
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vr_bool rad_set, s_a_set, e_a_set;
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vr_bool pnt_read, seg_read, arc_read, cir_read, poly_closed = false;
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vr_bool poly_started = false;;
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*new_input = false;
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isolated_pnts = false;
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InitBBox;
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input = OpenFileVD(input_file, "r");
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH)) return;
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while (strcmp(string, "EOF")) {
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if ((!strcmp(string, "POINT")) ||
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(!strcmp(string, "LINE")) ||
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(!strcmp(string, "CIRCLE")) ||
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(!strcmp(string, "ARC"))) {
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/* */
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/* input point, line segment, circle or circular arc. */
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/* */
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xc1_set = yc1_set = false;
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xc2_set = yc2_set = false;
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rad_set = s_a_set = e_a_set = false;
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pnt_read = seg_read = arc_read = cir_read = false;
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if (!strcmp(string, "POINT")) pnt_read = true;
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if (!strcmp(string, "LINE")) seg_read = true;
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if (!strcmp(string, "ARC")) arc_read = true;
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if (!strcmp(string, "CIRCLE")) cir_read = true;
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do {
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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dxf_code = atoi(code);
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switch(dxf_code) {
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case 10:
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xc1 = atof(string);
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xc1_set = true;
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break;
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case 20:
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yc1 = atof(string);
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yc1_set = true;
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break;
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case 11:
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xc2 = atof(string);
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xc2_set = true;
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break;
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case 21:
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yc2 = atof(string);
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yc2_set = true;
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break;
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case 40:
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rad = atof(string);
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rad_set = true;
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break;
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case 50:
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s_a = atof(string);
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s_a_set = true;
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break;
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case 51:
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e_a = atof(string);
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e_a_set = true;
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break;
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default:
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break;
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}
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} while (dxf_code != 0);
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if (xc1_set && yc1_set) {
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*new_input = true;
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if (seg_read && xc2_set && yc2_set) {
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#ifdef EXT_APPL_SITES
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HandleSeg(xc1, yc1, xc2, yc2, eas_NIL);
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#else
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HandleSeg(xc1, yc1, xc2, yc2);
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#endif
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}
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else if (arc_read && rad_set && s_a_set && e_a_set){
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s_a *= M_PI_180;
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e_a *= M_PI_180;
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#ifdef EXT_APPL_SITES
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HandleArc(xc1 + rad * cos(s_a), yc1 + rad * sin(s_a),
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xc1 + rad * cos(e_a), yc1 + rad * sin(e_a),
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xc1, yc1, ARC, eas_NIL);
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#else
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HandleArc(xc1 + rad * cos(s_a), yc1 + rad * sin(s_a),
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xc1 + rad * cos(e_a), yc1 + rad * sin(e_a),
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xc1, yc1, ARC);
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#endif
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}
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else if (cir_read && rad_set) {
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#ifdef EXT_APPL_SITES
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HandleArc(xc1 + rad, yc1, xc1 - rad, yc1, xc1, yc1,
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ARC, eas_NIL);
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HandleArc(xc1 - rad, yc1, xc1 + rad, yc1, xc1, yc1,
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ARC, eas_NIL);
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#else
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HandleArc(xc1 + rad, yc1, xc1 - rad, yc1, xc1, yc1,
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ARC);
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HandleArc(xc1 - rad, yc1, xc1 + rad, yc1, xc1, yc1,
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ARC);
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#endif
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}
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else if (pnt_read) {
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#ifdef EXT_APPL_PNTS
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(void) HandlePnt(xc1, yc1, eap_NIL);
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#else
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(void) HandlePnt(xc1, yc1);
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#endif
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isolated_pnts = true;
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}
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}
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}
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else if (!strcmp(string, "LWPOLYLINE")) {
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/* */
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/* "light-weight" polygonal curve. */
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/* */
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DXFStartPoly();
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xc1_set = false;
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yc1_set = false;
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bulge = 0.0;
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poly_closed = false;
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do {
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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dxf_code = atoi(code);
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switch(dxf_code) {
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case 10:
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case 20:
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if (dxf_code == 10) {
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xc1 = atof(string);
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xc1_set = true;
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}
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else {
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yc1 = atof(string);
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yc1_set = true;
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}
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if (xc1_set && yc1_set) {
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*new_input = true;
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DXFAddPolyVertex(xc1, yc1, bulge);
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xc1_set = false;
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yc1_set = false;
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bulge = 0.0;
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}
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break;
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case 42:
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bulge = atof(string);
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break;
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case 70:
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poly_closed = (vr_bool) (1&atoi(string));
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break;
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default:
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break;
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}
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} while (dxf_code != 0);
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if (poly_closed) {
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DXFClosePoly(bulge);
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bulge = 0.0;
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}
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}
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else if (!strcmp(string, "POLYLINE")) {
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/* */
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/* polygonal curve. */
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/* */
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poly_closed = false;
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do {
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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dxf_code = atoi(code);
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switch(dxf_code) {
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case 70:
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poly_closed = (vr_bool) (1&atoi(string));
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break;
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default:
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break;
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}
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} while (dxf_code != 0);
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if (strcmp(string, "VERTEX"))
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SkipUntilDXFString(input, code, string, "VERTEX");
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DXFStartPoly();
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poly_started = true;
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old_bulge = 0.0;
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}
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else if (!strcmp(string, "VERTEX")) {
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/* */
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/* vertex of a polygon. */
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/* */
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xc1_set = false;
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yc1_set = false;
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bulge = 0.0;
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do {
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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dxf_code = atoi(code);
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switch(dxf_code) {
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case 10:
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xc1 = atof(string);
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xc1_set = true;
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break;
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case 20:
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yc1 = atof(string);
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yc1_set = true;
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break;
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case 42:
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bulge = atof(string);
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break;
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default:
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break;
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}
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} while (dxf_code != 0);
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if (poly_started && xc1_set && yc1_set) {
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*new_input = true;
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DXFAddPolyVertex(xc1, yc1, old_bulge);
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old_bulge = bulge;
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}
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xc1_set = false;
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yc1_set = false;
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}
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else if (!strcmp(string, "SEQEND")) {
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if (poly_closed) DXFClosePoly(old_bulge);
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poly_started = false;
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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}
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else if (string[0] == '$') {
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/* */
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/* some initialization stuff. we don't care about it. */
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/* */
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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}
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else if (string[0] == '{') {
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/* */
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/* some application-specific stuff. we don't care about it. */
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/* */
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i = ((int) strlen(string)) - 1;
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if (string[i] != '}') {
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SkipUntilDXFString(input, code, string, "}");
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}
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else {
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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}
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}
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else if (!strcmp(string, "LAYER")) {
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/* */
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/* information on a layer. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else if (!strcmp(string, "BLOCK")) {
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/* */
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/* information on a block. we skip it. */
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/* */
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SkipUntilDXFString(input, code, string, "ENDBLK");
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}
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else if (!strcmp(string, "INSERT")) {
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/* */
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/* information on inserting a block. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else if (!strcmp(string, "SPLINE")) {
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/* */
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/* information on a spline. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else if (!strcmp(string, "ELLIPSE")) {
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/* */
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/* information on an ellipse. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else if (!strcmp(string, "TEXT")) {
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/* */
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/* text. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else if (!strcmp(string, "DIMENSION")) {
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/* */
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/* dimensons. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else if (!strcmp(string, "HATCH")) {
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/* */
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/* information on hatching. we skip it. */
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/* */
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SkipUntilDXFCode(input, code, string, 0);
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}
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else {
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/* */
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/* some dxf code that we don't care about. */
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/* */
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if (!ReadNewDXFPair(input, code, string, LINE_LENGTH))
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throw std::runtime_error("VRONI error: ReadDXFFile() - premature end of file!");
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}
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}
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fclose(input);
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return;
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}
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/* */
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/* this routines writes the standard start-up DXF lines. */
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/* */
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void vroniObject::StartDXFFile(FILE *dxf_file)
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{
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fprintf(dxf_file, " 0\nSECTION\n 2\nHEADER\n" );
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fprintf(dxf_file, " 0\nENDSEC\n" );
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fprintf(dxf_file, " 0\nSECTION\n 2\nENTITIES\n" );
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return;
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}
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/* */
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/* this routines writes the standard finishing DXF lines. */
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/* */
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void vroniObject::FinishDXFFile(FILE *dxf_file)
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{
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if (dxf_file != (FILE*)NULL) {
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fprintf(dxf_file, " 0\nENDSEC\n 0\nEOF\n");
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}
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return;
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}
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void vroniObject::WriteDXFEntity(FILE *dxf_file, int color)
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{
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// write Handle
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fprintf(dxf_file, " 5\n%d\n", dxf_handle);
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dxf_handle++;
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// write subclass marker (AcDbEntity)
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fprintf(dxf_file, "100\nAcDbEntity\n");
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// write layer name
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fprintf(dxf_file, " 8\nVRONI\n");
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// write color number
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if (color >= 0) fprintf(dxf_file, " 62\n%3d\n", color);
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return;
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}
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/* */
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/* output a 2D line segment in DXF format. */
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/* */
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void vroniObject::WriteDXFLine(FILE *dxf_file, double_arg xc1, double_arg yc1,
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double_arg xc2, double_arg yc2, int color)
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{
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if (dxf_file != (FILE*)NULL) {
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fprintf(dxf_file, " 0\nLINE\n" );
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WriteDXFEntity(dxf_file, color);
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fprintf(dxf_file, "100\nAcDbLine\n" );
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FP_fprintf(dxf_file, " 10\n%f\n 20\n%f\n 30\n0.0\n", FP_PRNTARG(xc1), FP_PRNTARG(yc1) );
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FP_fprintf(dxf_file, " 11\n%f\n 21\n%f\n 31\n0.0\n", FP_PRNTARG(xc2), FP_PRNTARG(yc2) );
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}
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else {
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throw std::runtime_error("VRONI error: WriteDXFLine() - DXF output file not opened properly!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/* */
|
|
/* output a 2D point in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFPoint(FILE *dxf_file, double_arg xc1, double_arg yc1,
|
|
int color)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nPOINT\n" );
|
|
WriteDXFEntity(dxf_file, color);
|
|
fprintf(dxf_file, "100\nAcDbPoint\n" );
|
|
FP_fprintf(dxf_file, " 10\n%f\n 20\n%f\n 30\n0.0\n", FP_PRNTARG(xc1), FP_PRNTARG(yc1) );
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFPoint() - DXF output file not opened properly!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/* */
|
|
/* output a 2D circle in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFCircle(FILE *dxf_file, double_arg xc1, double_arg yc1,
|
|
double_arg radius, int color)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nCIRCLE\n" );
|
|
WriteDXFEntity(dxf_file, color);
|
|
fprintf(dxf_file, "100\nAcDbCircle\n" );
|
|
FP_fprintf(dxf_file, " 10\n%f\n 20\n%f\n 30\n0.0\n", FP_PRNTARG(xc1), FP_PRNTARG(yc1) );
|
|
FP_fprintf(dxf_file, " 40\n%f\n", FP_PRNTARG(radius) );
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFCircle() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
/* */
|
|
/* output a 2D circular arc in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFArc(FILE *dxf_file, double_arg xc1, double_arg yc1,
|
|
double_arg xc2, double_arg yc2,
|
|
double_arg xc3, double_arg yc3, vr_bool ccw_flag, int color)
|
|
{
|
|
double s_a, s_e;
|
|
|
|
double dx, dy, r;
|
|
|
|
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nARC\n" );
|
|
WriteDXFEntity(dxf_file, color);
|
|
fprintf(dxf_file, "100\nAcDbCircle\n" );
|
|
FP_fprintf(dxf_file, " 10\n%f\n 20\n%f\n 30\n0.0\n", FP_PRNTARG(xc3), FP_PRNTARG(yc3) );
|
|
dx = xc1 - xc3;
|
|
dy = yc1 - yc3;
|
|
r = sqrt( dx*dx + dy*dy );
|
|
|
|
FP_fprintf(dxf_file, " 40\n%f\n", FP_PRNTARG(r) );
|
|
|
|
s_a = atan2( dy, dx );
|
|
s_e = atan2( yc2 - yc3, xc2 - xc3 );
|
|
if ( s_a < 0.0 ) s_a += 2*M_PI;
|
|
if ( s_e < 0.0 ) s_e += 2*M_PI;
|
|
s_a *= M_180_PI;
|
|
s_e *= M_180_PI;
|
|
fprintf(dxf_file, "100\nAcDbArc\n" );
|
|
if ( ccw_flag )
|
|
FP_fprintf(dxf_file, " 50\n%f\n 51\n%f\n", FP_PRNTARG(s_a), FP_PRNTARG(s_e) );
|
|
else
|
|
FP_fprintf(dxf_file, " 50\n%f\n 51\n%f\n", FP_PRNTARG(s_e), FP_PRNTARG(s_a) );
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFArc() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
/* */
|
|
/* output the start code for "LWPOLYLINE" in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFLWPoly_Start(FILE *dxf_file, vr_bool closed,
|
|
int color)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nLWPOLYLINE\n" );
|
|
WriteDXFEntity(dxf_file, color);
|
|
fprintf(dxf_file, "100\nAcDbPolyline\n" );
|
|
if (closed) fprintf(dxf_file, " 70\n 1\n" );
|
|
else fprintf(dxf_file, " 70\n 0\n" );
|
|
fprintf(dxf_file, " 6\nCONTINUOUS\n");
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFLWPoly_Start() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/* */
|
|
/* output the start code for "POLYLINE" in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFPoly_Start(FILE *dxf_file, vr_bool closed, int color)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nPOLYLINE\n" );
|
|
WriteDXFEntity(dxf_file, color );
|
|
fprintf(dxf_file, "100\nAcDb2dPolyline\n" );
|
|
if (closed) fprintf(dxf_file, " 70\n 1\n" );
|
|
else fprintf(dxf_file, " 70\n 0\n" );
|
|
fprintf(dxf_file, " 6\nCONTINUOUS\n");
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFPoly_Start() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
/* */
|
|
/* output the end code for "POLYLINE" in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFPoly_End(FILE *dxf_file)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nSEQEND\n");
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFPoly_End() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
|
|
/* */
|
|
/* output one vertex of a "LWPOLYLINE" in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFLWPoly_Vertex(FILE *dxf_file, double_arg xc1, double_arg yc1,
|
|
double_arg bulge)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
FP_fprintf(dxf_file, " 10\n%f\n 20\n%f\n 30\n0.0\n", FP_PRNTARG(xc1), FP_PRNTARG(yc1));
|
|
if (bulge != 0.0) FP_fprintf(dxf_file, " 42\n%f\n", FP_PRNTARG(bulge));
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFLWPoly_Vertex() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
/* */
|
|
/* output one vertex of a "POLYLINE" in DXF format. */
|
|
/* */
|
|
void vroniObject::WriteDXFPoly_Vertex(FILE *dxf_file, double_arg xc1, double_arg yc1,
|
|
double_arg bulge)
|
|
{
|
|
if (dxf_file != (FILE*)NULL) {
|
|
fprintf(dxf_file, " 0\nVERTEX\n");
|
|
FP_fprintf(dxf_file, " 10\n%f\n 20\n%f\n 30\n0.0\n", FP_PRNTARG(xc1), FP_PRNTARG(yc1));
|
|
if (bulge != 0.0) FP_fprintf(dxf_file, " 42\n%f\n", FP_PRNTARG(bulge));
|
|
}
|
|
else {
|
|
throw std::runtime_error("VRONI error: WriteDXFPoly_Vertex() - DXF output file not properly opened!");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|