fix for issue 1976 with improved condition checks for input arrays

Author: archmoj

package.json

@@ -74,7 +74,7 @@
     "gl-contour2d": "^1.1.4",
     "gl-error3d": "^1.0.8",
     "gl-heatmap2d": "^1.0.4",
-    "gl-line3d": "git://github.com/gl-vis/gl-line3d.git#50202331742946769647be7c77cf6c53b019d205",
+    "gl-line3d": "git://github.com/gl-vis/gl-line3d.git#860955328a385e0bdbd6d8b1d72b0a0ca433e6c7",
     "gl-mat4": "^1.2.0",
     "gl-mesh3d": "^2.0.1",
     "gl-plot2d": "^1.3.1",