Add options.noFrame=false for isoLines() function

RaumZeit · Apr 28, 2019 · 0811f63 · 0811f63
1 parent bfea0a3
commit 0811f63
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Showing 2 changed files with 8 additions and 6 deletions.
diff --git a/src/options.js b/src/options.js
@@ -10,6 +10,7 @@ function Options() {
   this.polygons_full    = false;
   this.linearRing       = true;
   this.noQuadTree       = false;
+  this.noFrame          = false;
 }
 
 

diff --git a/src/polygons.js b/src/polygons.js
@@ -373,12 +373,13 @@ function traceLinePaths(data, cellGrid, settings) {
   };
 
   /* first, detect whether we need any outer frame */
-  if (requireLineFrame(data, settings.threshold)) {
-    if (settings.linearRing)
-      polygons.push([ [0, 0], [0, rows], [cols, rows], [cols, 0], [0, 0] ]);
-    else
-      polygons.push([ [0, 0], [0, rows], [cols, rows], [cols, 0] ]);
-  }
+  if (!settings.noFrame)
+    if (requireLineFrame(data, settings.threshold)) {
+      if (settings.linearRing)
+        polygons.push([ [0, 0], [0, rows], [cols, rows], [cols, 0], [0, 0] ]);
+      else
+        polygons.push([ [0, 0], [0, rows], [cols, rows], [cols, 0] ]);
+    }
 
   /* finally, start tracing back first polygon(s) */