add fdm 'solidify' feature to remove inner voids from models at slice time

src/kiri/core/conf.js

@@ -330,6 +330,7 @@ export const conf = {
                 sliceMinHeight: 0,
                 sliceShellOrder: "in-out",
                 sliceShells: 3,
+                sliceSolidify: false,
                 sliceSolidMinArea: 1,
                 sliceSupportAngle: 50,
                 sliceSupportArea: 0.1,

src/kiri/core/widget.js

@@ -953,6 +953,7 @@ class Widget {
             }
         }
 
+        // map found tris to polygons
         let polys = found.map(a => {
             return newPolygon()
                 .add(a[0].x, a[0].y, a[0].z)
@@ -960,7 +961,7 @@ class Widget {
                 .add(a[2].x, a[2].y, a[2].z);
         });
 
-        // recursively merge grid constrained subsets of triangles
+        // recursively merge grid constrained subsets of polygons
         polys = unionTris(polys);
 
         // for a more perfect union, pump shadows to merge very close lines

src/kiri/mode/fdm/init-menu.js

@@ -50,7 +50,7 @@ function fillIsLinear() {
 }
 
 function zIntShow() {
-    return settings().controller.devel;
+    return api.conf.get().controller.devel;
 }
 
 function isBelt() {
@@ -84,7 +84,7 @@ export function menu() {
     sliceShellOrder:     newSelect(LANG.sl_ordr_s, { title:LANG.sl_ordr_l}, "shell"),
     sliceDetectThin:     newSelect(LANG.ad_thin_s, { title: LANG.ad_thin_l, action: thinWallSave }, "thin"),
     outputAlternating:   newBoolean(LANG.ad_altr_s, onBooleanClick, {title:LANG.ad_altr_l}),
-    sliceZInterleave:    newBoolean(LANG.ad_zint_s, onBooleanClick, {title:LANG.ad_zint_l, show:zIntShow}),
+    sliceZInterleave:    newBoolean(LANG.ad_zint_s, onBooleanClick, {title:LANG.ad_zint_l, show:() => zIntShow() }),
     _____:               newGroup(LANG.fs_menu, $('fdm-solid'), { modes:FDM, driven, hideable, separator, group:"fdm-solid" }),
     sliceFillAngle:      newInput(LANG.fi_angl_s, {title:LANG.fi_angl_l, convert:toFloat}),
     sliceFillGrow:       newInput(LANG.fi_grow_s, {title:LANG.fi_grow_l, convert:toFloat}),
@@ -148,7 +148,7 @@ export function menu() {
     separator:           newBlank({ class:"set-sep", driven, show:isNotBelt }),
     outputBrimCount:     newInput(LANG.fl_skrt_s, {title:LANG.fl_skrt_l, convert:toInt,   show:isNotBelt}),
     outputBrimOffset:    newInput(LANG.fl_skro_s, {title:LANG.fl_skro_l, convert:toFloat, show:isNotBelt}),
-    outputRaftSpacing:   newInput(LANG.fr_spac_s, {title:LANG.fr_spac_l, convert:toFloat, bound:bound(0.0,3.0), show: () => ui.outputRaft.checked && isNotBelt() }),
+    outputRaftSpacing:   newInput(LANG.fr_spac_s, {title:LANG.fr_spac_l, convert:toFloat, bound:bound(0.0,3.0), show:() => ui.outputRaft.checked && isNotBelt() }),
     separator:           newBlank({ class:"set-sep", driven, show:isNotBelt }),
     outputRaft:          newBoolean(LANG.fr_nabl_s, onBooleanClick, {title:LANG.fr_nabl_l, trigger, show:() => isNotBelt()}),
     _____:               newGroup(LANG.ou_menu, $('fdm-output'), { modes:FDM, driven, hideable, separator, group:"fdm-out" }),
@@ -165,6 +165,7 @@ export function menu() {
     outputRetractWipe:   newInput(LANG.ad_wpln_s, {title:LANG.ad_wpln_l, convert:toFloat, bound:bound(0.0,10)}),
     separator:           newBlank({ class:"set-sep", driven }),
     outputAvoidGaps:     newBoolean(LANG.ad_agap_s, onBooleanClick, {title:LANG.ad_agap_l}),
+    sliceSolidify:       newBoolean(LANG.ad_sold_s, onBooleanClick, {title:LANG.ad_sold_l}),
     separator:           newBlank({ class:"set-sep", driven, show:isBelt }),
     outputBeltFirst:     newBoolean(LANG.ad_lbir_s, onBooleanClick, {title:LANG.ad_lbir_l, show:isBelt}),
     _____:               newGroup(LANG.ad_menu, $('fdm-expert'), { modes:FDM, driven, hideable, separator, group:"fdm-xprt" }),

src/kiri/mode/fdm/post.js

@@ -42,6 +42,11 @@ export function slicePost(data, options) {
         data.tops = POLY.nest(groups);
     }
 
+    // solidfy (remove inners)
+    if (process.sliceSolidify) {
+        data.tops.forEach(poly => poly.inner = undefined);
+    }
+
     // perimeter and inner hole compensation offsets
     if (compInner || compOuter) {
         let inner = POLY.inner(data.tops).flat();
@@ -59,7 +64,7 @@ export function slicePost(data, options) {
         const process = post_args.process;
         if (process.sliceSupportGrow > 0) {
             // expand synth supports here so they can be clipped later
-            data.tops  = POLY.expand(data.tops, process.sliceSupportGrow, data.z, []);
+            data.tops = POLY.expand(data.tops, process.sliceSupportGrow, data.z, []);
         }
         // do not shell synth widgets because
         // they will be clipped against peers later

web/kiri/lang/en.js

@@ -911,6 +911,8 @@ self.lang['en-us'] = {
     ad_pspd_l:      ["polishing speed","in millimeters / second"],
     ad_purg_s:      "purge tower",
     ad_purg_l:      ["purge tower area in mm^2","for multi extruder setups","0 = disabled"],
+    ad_sold_s:      "solidify",
+    ad_sold_l:      ["remove inner voids","treat the model as a solid"],
 
     // CAM EXPERT
     cx_fast_s:      "skip shadow",