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111 lines
2.9 KiB
111 lines
2.9 KiB
#include <iostream>
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#include <cmath>
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#include <vector>
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#include <cassert>
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using namespace std;
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#include "Projector.hpp"
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#include "Canvas.hpp"
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#include "myMath.hpp"
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void Projector::init(const double * point) {
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init_vector();
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project(point);
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init_range();
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}
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void Projector::init_vector() {
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project_point = new double[intern_dim];
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offset = new double[intern_dim];
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assert(project_point != NULL);
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assert(offset != NULL);
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}
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void Projector::init_range() {
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range_min = new double[intern_dim];
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range_max = new double[intern_dim];
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assert(range_min != NULL);
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assert(range_max != NULL);
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for ( unsigned int i = 0; i < intern_dim; i++ ) {
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range_min[i] = range_max[i] = project_point[i];
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}
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}
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void Projector::update_range(const double * point) {
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project(point);
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for ( unsigned int i = 0; i < intern_dim; i++ ) {
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if ( project_point[i] < range_min[i] ) {
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range_min[i] = project_point[i];
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} else if ( project_point[i] > range_max[i] ) {
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range_max[i] = project_point[i];
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}
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}
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}
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void Projector::finish_range() {
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// double max_dist = 0.0;
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// for ( unsigned int i = 0; i < intern_dim; i++ ) {
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// const double dist = range_max[i] - range_min[i];
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// if ( dist > max_dist )
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// max_dist = dist;
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// }
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//
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// factor = 0.9/max_dist;
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// for ( unsigned int i = 0; i < intern_dim; i++ ) {
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// offset[i] = -0.5*factor*(range_min[i] + range_max[i]);
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// }
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factor = canvas->size[0] / (range_max[0] - range_min[0]);
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unsigned int teh_size = canvas->size[0];
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for ( unsigned int i = 1; i < intern_dim; i++ ) {
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double dist = range_max[i] - range_min[i];
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if ( factor * dist > (double)canvas->size[i] ) {
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factor = (double)canvas->size[i] / dist;
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//teh_size = canvas->size[i];
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cout << "crap for dim" << i << endl;
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}
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}
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factor /= (double)teh_size;
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for ( unsigned int i = 0; i < intern_dim; i++ ) {
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offset[i] = -0.5*factor*(range_min[i] + range_max[i]);
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}
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}
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void Projector::project(const double * point) {
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assert(extern_dim >= 2);
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project_point[0] = point[0];
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project_point[1] = point[1];
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}
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void Projector::plot(const double * point) {
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project(point);
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const double x = project_point[0]*factor + offset[0];
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const double y = project_point[1]*factor + offset[1];
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//cout << x << ", " << y << endl;
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canvas->plot(x+0.01*rand()/(double)RAND_MAX-0.005, y+0.01*rand()/(double)RAND_MAX-0.005);
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if ( even(point[2]*17) )
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canvas->plot(x, y, 1);
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if ( even(point[2]*17+0.6) )
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canvas->plot(x, y, 2);
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}
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void Projector::output(){
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cout << "Projector properties: " << endl;
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cout << " factor: " << factor << endl;
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for ( unsigned int i = 0; i < intern_dim; i++ ) {
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cout << " dimension " << i << ": offset: " << offset[i] << ", range: [" << range_min[i] << ", " << range_max[i] << "]" << endl;
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}
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}
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