diff options
| author | Tim Redfern <tim@getdrop.com> | 2022-09-29 21:12:40 +0100 |
|---|---|---|
| committer | Tim Redfern <tim@getdrop.com> | 2022-09-29 21:12:40 +0100 |
| commit | a2c919f85c366e02cdc71f0fb46f4ebd4e4afebe (patch) | |
| tree | ba1b88607e8de35b0b49683648d7f64ac8259fe1 /passadesgui/src/lineSegmenter.cpp | |
| parent | 8c43a654fdc0a0fd822fd0bd9462cdadf6d96456 (diff) | |
revert to working single plugin chaos
Diffstat (limited to 'passadesgui/src/lineSegmenter.cpp')
| -rw-r--r-- | passadesgui/src/lineSegmenter.cpp | 109 |
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(); +} + + +/* + + + + +*/
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