USING_AUTOS ?= filamentspool xeno-drivebay-bracket dungeonquest-cone anke-gps-bracket cable-hole-trunking-cover anglepoise-neck crossbar-computer-led-mount
AUTO_TOPLEVELS := $(foreach m,$(USING_AUTOS),$(shell $(PLAY)/toplevel-find $m))
+AUTO_INCS = funcs.scad
+
+default: autoincs scads
+
+autoincs: $(AUTO_INCS)
scads: $(addsuffix .auto.scad, $(AUTO_TOPLEVELS))
stls: $(addsuffix .auto.stl, $(AUTO_TOPLEVELS))
%.auto.stls:
$(MAKE) $(addsuffix .auto.stl, $(shell $(PLAY)/toplevel-find $*))
-default:
-
-include .*.d
-%.stl: %.scad
+%.stl: %.scad $(AUTO_INCS)
openscad -d .$@.d.tmp -o $*.tmp.stl $<
@rm -f $@
@sed -e 's/\.tmp\.stl:/.stl:/' <.$@.d.tmp >.$@.d
%.gcode: manual-gcode-generator %.m-g
$(PLAY)/$^ >$@.tmp && mv -f $@.tmp $@
-dovecliptest.stl: doveclip.scad
+dovecliptest.stl: doveclip.scad $(AUTO_INCS)
%.auto.scad: $(PLAY)/toplevel-make Makefile $(PLAY)/toplevel-find
@echo ' write $@'
.PRECIOUS: %.stl %.gcode
clean:
- rm -f *~ *.stl *.auto.scad *.gcode .*.d
+ rm -f *~ *.stl *.auto.scad *.gcode .*.d $(AUTO_INCS)
--- /dev/null
+// -*- C -*-
+
+function dist(a,b) =
+#define dsq(i) (a[i]-b[i])*(a[i]-b[i])
+ sqrt(dsq(0) + dsq(1));
+#undef dsq
+
+function circle_point(c, r, alpha) = [ c[0] + r * cos(alpha),
+ c[1] + r * sin(alpha) ];
+
+function tangent_intersect(a,c,r) =
+#define d (dist(a,c))
+#define alpha (atan2(a[1]-c[1],a[0]-c[0]))
+#define gamma (asin(r / d))
+#define beta (alpha + 90 - gamma)
+ circle_point(c, r, beta);
+#undef d
+#undef alpha
+#undef gamma
+#undef beta