115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
#ifndef TRIANGLE_GROUP_MAIN_H
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#define TRIANGLE_GROUP_MAIN_H
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#include <gsl/gsl_linalg.h>
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#include "triangle.h"
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#include "linalg.h"
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#include "initcairo.h"
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#undef ERROR
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#define ERROR(condition, msg, ...) if(condition){fprintf(stderr, msg, ##__VA_ARGS__); exit(1);}
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#define LOOP(i) for(int i = 0; i < 3; i++)
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#define NUM_GROUP_ELEMENTS 10000
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typedef struct {
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double x[3];
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} vector_t;
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typedef struct {
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double x;
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double y;
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} point_t;
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typedef struct {
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// infos about the screen to draw on
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cairo_t *cairo;
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DimensionsInfo *dim;
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// a priori parameter
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int p[3],k[3];
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double parameter;
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int n_group_elements;
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int show_boxes;
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int show_boxes2;
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int show_attractors;
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int show_reflectors;
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int show_rotated_reflectors;
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int show_limit;
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int show_dual_limit;
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int show_text;
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int mode;
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int use_rotation_basis;
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int limit_with_lines;
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int show_marking;
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point_t marking;
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int show_coxeter_orbit;
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int use_repelling;
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gsl_matrix *cartan, *cob;
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// precomputed and constant
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groupelement_t *group;
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// computed stuff
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double *limit_curve; // x, y, angle triples
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int limit_curve_count;
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// temporary; matrices can only be freed from the top, but that's enough for us
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workspace_t *ws;
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} DrawingContext;
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typedef enum {
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VT_POINT,
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VT_LINE
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} vector_type_t;
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// implemented in limit_set.c
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void cartanMatrix(gsl_matrix *cartan, double a1, double a2, double a3, double s);
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void initializeTriangleGenerators(gsl_matrix **gen, gsl_matrix *cartan);
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int computeLimitCurve(DrawingContext *ctx);
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// implemented in draw.c
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vector_t cross(vector_t a, vector_t b);
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int fixedPoints(DrawingContext *ctx, const char *word, vector_t *out);
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void drawPoint(DrawingContext *ctx, point_t p);
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void drawSegment2d(DrawingContext *ctx, point_t a, point_t b);
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point_t vectorToPoint(DrawingContext *ctx, vector_t v);
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void drawVector(DrawingContext *ctx, vector_t v);
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void drawCovector(DrawingContext *ctx, vector_t v);
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void drawSegment(DrawingContext *ctx, vector_t a, vector_t b);
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void drawPolygon(DrawingContext *ctx, int segments, int sides, ...);
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void drawTriangle(DrawingContext *ctx, const char *word);
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void drawBox(DrawingContext *ctx, const char *word1, const char *word2);
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void drawBoxLines(DrawingContext *ctx, const char *word1, const char *word2);
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void drawBoxStd(DrawingContext *ctx, const char *word, char base);
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void drawReflectors(DrawingContext *ctx);
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void drawAttractors(DrawingContext *ctx);
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void drawBoxes(DrawingContext *ctx);
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void drawBoxes2(DrawingContext *ctx);
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void drawLimitCurve(DrawingContext *ctx);
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void drawText(DrawingContext *ctx);
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void draw(DrawingContext *ctx);
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// implemented in main.c
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void setupContext(DrawingContext *ctx, int argc, char *argv[]);
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void destroyContext(DrawingContext *ctx);
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void print(DrawingContext *screen);
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int processEvent(GraphicsInfo *info, XEvent *ev);
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void computeRotationMatrix(DrawingContext *ctx, gsl_matrix *result, const char *type);
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void updateMatrices(DrawingContext *ctx);
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static vector_t vectorFromGsl(gsl_vector *v)
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{
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vector_t result;
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LOOP(i) result.x[i] = gsl_vector_get(v, i);
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return result;
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}
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static void vectorToGsl(vector_t v, gsl_vector *out)
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{
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LOOP(i) gsl_vector_set(out, i, v.x[i]);
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}
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#endif
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