From f140c2822b7b3798d86798f8b300f9a0d133259f Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@getdrop.com>
Date: Sun, 16 Apr 2023 21:16:08 +0100
Subject: add nextus show

---
 nextus/src/lineSegmenter.cpp | 109 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 nextus/src/lineSegmenter.cpp

(limited to 'nextus/src/lineSegmenter.cpp')

diff --git a/nextus/src/lineSegmenter.cpp b/nextus/src/lineSegmenter.cpp
new file mode 100644
index 0000000..3f434b1
--- /dev/null
+++ b/nextus/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
-- 
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