Merge pull request openscad#4813 from gsohler/measure

Adding interactive measurement abilities to OpenSCAD.

CMakeLists.txt

@@ -946,6 +946,7 @@ set(GUI_SOURCES
   src/gui/LaunchingScreen.cc
   src/gui/LibraryInfoDialog.cc
   src/gui/MainWindow.cc
+  src/gui/Measurement.cc
   src/gui/Animate.cc
   src/gui/MouseSelector.cc
   src/gui/OctoPrint.cc

resources/common.qrc.in

@@ -130,5 +130,9 @@
     <file>icons/svg-default/vcr-control-step-forward-white.svg</file>
     <file>icons/svg-default/vcr-control-end.svg</file>
     <file>icons/svg-default/vcr-control-end-white.svg</file>
+    <file>icons/svg-default/measure-dist.svg</file>
+    <file>icons/svg-default/measure-dist-white.svg</file>
+    <file>icons/svg-default/measure-ang.svg</file>
+    <file>icons/svg-default/measure-ang-white.svg</file>
   </qresource>
 </RCC>

resources/icons/svg-default/icons.scad

@@ -67,6 +67,8 @@ icons = [
     ["vcr-control-pause"],
     ["vcr-control-step-forward"],
     ["vcr-control-end"],
+    ["measure-dist"],
+    ["measure-ang"]
 ];
 
 icon(selected_icon) {
@@ -121,6 +123,8 @@ icon(selected_icon) {
     vcr_control_pause();
     vcr_control_step_forward();
     vcr_control_end();
+    measure_dist();
+    measure_ang();
 }
 
 if (list_icons) {
@@ -733,3 +737,36 @@ module vcr_control_end(){
        translate([x, 0]) square([thick, 0.4 * width], center = true);
     }
 }
+
+module measure_dist(){
+    x =  0.75 * width /2;
+    a = width*0.2;
+    t = thin*0.1;
+    offset(rounding)
+    translate([width/2,height/2]){
+        for(mirr=[1,0,0]) mirror([mirr,0,0])  {
+            translate([x, 0]) square([t, 0.8 * width], center = true);
+        polygon([[x-t,-15],[x-a-t,a-15],[x-a-t,-a-15]]);
+        }
+       translate([0,-15])  square([2*x, thin], center = true);
+    }
+    translate([25,50])
+    resize([40, 40], true)
+    text("10", 40, font = export_font);
+
+}
+
+module measure_ang() {
+    x =  0.75 * width /2;
+    a = width*0.2;
+    offset(rounding)
+    translate([width/2,height/2]){
+        for(mirr=[1,0,0]) mirror([mirr,0,0])  {
+            translate([0, -x]) rotate([0,0,45]) square([thin, 0.8 * width/sqrt(2)]);
+        }
+    }
+    translate([width*0.5,width*0.6]) scale(0.7) curved_arrow();
+    translate([30,30])
+    resize([40, 40], true)
+    text("45", 40, font = export_font);
+}