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authorTim Redfern <tim@getdrop.com>2022-09-29 21:12:40 +0100
committerTim Redfern <tim@getdrop.com>2022-09-29 21:12:40 +0100
commita2c919f85c366e02cdc71f0fb46f4ebd4e4afebe (patch)
treeba1b88607e8de35b0b49683648d7f64ac8259fe1 /passadesgui/src/lineSegmenter.cpp
parent8c43a654fdc0a0fd822fd0bd9462cdadf6d96456 (diff)
revert to working single plugin chaos
Diffstat (limited to 'passadesgui/src/lineSegmenter.cpp')
-rw-r--r--passadesgui/src/lineSegmenter.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/passadesgui/src/lineSegmenter.cpp b/passadesgui/src/lineSegmenter.cpp
new file mode 100644
index 0000000..3f434b1
--- /dev/null
+++ b/passadesgui/src/lineSegmenter.cpp
@@ -0,0 +1,109 @@
+ #include "lineSegmenter.h"
+
+const vector <ofPolyline> & lineSegmenter::getSegments(int num,float coverage, float phase){
+ //num - number of segments
+ //coverage - amount that each segment fills it's slot from 0-1
+ //phase - from 0-1
+
+ //if the path is closed, we can make a segment that crosses the end/beginning
+ //however we want to be able to deal with open paths
+
+/*
+
+segments 0...n - 1
+phase 0...1
+
+phase 0
+
+segment 0 is (0 -> coverage) / n
+segment n - 1 is ((0 -> coverage) + (n-1)) /n
+
+phase 1: has to be the loop target, it has to look identical
+
+segment 0 is (1 -> coverage) / n
+segment n - 1 is (1 - > coverage) + (n-1)
+
+*/
+
+
+ segments.clear();
+
+ for (int i=0;i<num;i++){
+ float startIndex=line.getIndexAtPercent((phase+i)/num); //always <1
+ float endPoint=(phase+i+coverage)/num; //can be >1
+ float endIndex=line.getIndexAtPercent(endPoint>1.0f?endPoint-1.0f:endPoint);
+ ofPolyline segment;
+ segment.addVertex(line.getPointAtIndexInterpolated(startIndex));
+ for (int j=(int)ceil(startIndex);j<(endPoint>1?line.size():(int)ceil(endIndex));j++){
+ segment.addVertex(line[j]);
+ }
+ if (endPoint>1){
+ segments.push_back(segment);
+ segment.clear();
+ for (int j=0;j<(int)ceil(endIndex);j++){
+ segment.addVertex(line[j]);
+ }
+ segment.addVertex(line.getPointAtIndexInterpolated(endIndex));
+ }
+ else {
+ segment.addVertex(line.getPointAtIndexInterpolated(endIndex));
+ }
+ segments.push_back(segment);
+ }
+
+ return segments;
+}
+
+void lineSegmenter::draw(){
+ line.draw();
+ return;
+}
+int lineSegmenter::size(){
+ return line.size();
+}
+
+const vector <colourPolyline> & colourLineSegmenter::getSegments(int num,float coverage, float phase){
+
+ segments.clear();
+
+ for (int i=0;i<num;i++){
+ float startIndex=line.getIndexAtPercent((phase+i)/num); //always <1
+ float endPoint=(phase+i+coverage)/num; //can be >1
+ float endIndex=line.getIndexAtPercent(endPoint>1.0f?endPoint-1.0f:endPoint);
+ colourPolyline segment;
+ segment.addVertex(line.getPointAtIndexInterpolated(startIndex),line.getColourAtIndexInterpolated(startIndex));
+ for (int j=(int)ceil(startIndex);j<(endPoint>1?line.size():(int)ceil(endIndex));j++){
+ segment.addVertex(line[j],line.getColourAt(j));
+ }
+ if (endPoint>1){
+ segments.push_back(segment);
+ segment.clear();
+ for (int j=0;j<(int)ceil(endIndex);j++){
+ segment.addVertex(line[j],line.getColourAt(j));
+ }
+ segment.addVertex(line.getPointAtIndexInterpolated(endIndex),line.getColourAtIndexInterpolated(endIndex));
+ }
+ else {
+ segment.addVertex(line.getPointAtIndexInterpolated(endIndex),line.getColourAtIndexInterpolated(endIndex) );
+ }
+ segments.push_back(segment);
+ }
+
+ return segments;
+}
+
+void colourLineSegmenter::draw(){
+ line.draw();
+ return;
+}
+int colourLineSegmenter::size(){
+ return line.size();
+}
+
+
+/*
+
+
+
+
+*/ \ No newline at end of file