void testApp::updateTrianglesRandom() {
Mat mat = Mat(kinect.getHeight(), kinect.getWidth(), CV_32FC1, kinect.getDistancePixels());
Sobel(mat, sobelxy, CV_32F, 1, 1);
sobelxy = abs(sobelxy);
int randomBlur = panel.getValueI("randomBlur") * 2 + 1;
boxFilter(sobelxy, sobelbox, 0, cv::Size(randomBlur, randomBlur), Point2d(-1, -1), false);
triangulator.reset();
points.clear();
int i = 0;
attempts = 0;
int randomCount = panel.getValueI("randomCount");
float randomWeight = panel.getValueF("randomWeight");
while(i < randomCount) {
Point2d curPosition(1 + (int) ofRandom(sobelbox.cols - 3),
1 + (int) ofRandom(sobelbox.rows - 3));
float curSample = sobelbox.at<unsigned char>(curPosition) / 255.f;
float curGauntlet = powf(ofRandom(0, 1), 2 * randomWeight);
if(curSample > curGauntlet) {
points.push_back(toOf(curPosition));
triangulator.addPoint(curPosition.x, curPosition.y, 0);
sobelbox.at<unsigned char>(curPosition) = 0; // don't do the same point twice
i++;
}
attempts++;
if(i > attempts * 100) {
break;
}
}
// add the edges
int w = mat.cols;
int h = mat.rows;
for(int x = 0; x < w; x++) {
triangulator.addPoint(x, 0, 0);
triangulator.addPoint(x, h - 1, 0);
}
for(int y = 0; y < h; y++) {
triangulator.addPoint(0, y, 0);
triangulator.addPoint(w - 1, y, 0);
}
triangulator.triangulate();
int n = triangulator.triangles.size();
triangles.resize(n);
for(int i = 0; i < n; i++) {
triangles[i].vert3 = triangulator.triangles[i].points[0];
triangles[i].vert2 = triangulator.triangles[i].points[1];
triangles[i].vert1 = triangulator.triangles[i].points[2];
}
}
/** Internal do not use
* \param[in] off
* \param[in] way
*/
bool SdStreamBase::seekoff(off_type off, seekdir way) {
pos_type pos;
switch (way) {
case beg:
pos = off;
break;
case cur:
pos = curPosition() + off;
break;
case end:
pos = fileSize() + off;
break;
default:
return false;
}
return seekpos(pos);
}
void testApp::update() {
Mat mat = getMat(depthImage);
Sobel(mat, sobelxy, CV_32F, 1, 1);
sobelxy = abs(sobelxy);
boxFilter(sobelxy, sobelbox, 0, cv::Size(7, 7));
triangulator.init();
points.clear();
int i = 0;
attempts = 0;
while(i < 5000) {
Point2d curPosition((int) ofRandom(sobelbox.cols - 1), (int) ofRandom(sobelbox.rows - 1));
float curSample = sobelbox.at<unsigned char>(curPosition) / 255.f;
float curGauntlet = powf(ofRandom(0, 1), 2 * (float) mouseX / ofGetWidth());
if(curSample > curGauntlet) {
points.push_back(makeVec(curPosition));
triangulator.addPoint(curPosition.x, curPosition.y);
sobelbox.at<unsigned char>(curPosition) = 0; // don't do the same point twice
i++;
}
attempts++;
if(i > attempts * 100) {
break;
}
}
int w = mat.cols - 1;
int h = mat.rows - 1;
triangulator.addPoint(0, 0);
triangulator.addPoint(w, 0);
triangulator.addPoint(w, h);
triangulator.addPoint(0, h);
triangulator.triangulate();
}
