move corners to inside of the face, rather than end-caps.
This commit is contained in:
Trammell Hudson
parent
0c3a89ff0f
commit
a8383cced0
105
corners.c
105
corners.c
@ -1,6 +1,8 @@
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/** \file
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* Generate an OpenSCAD with connectors for each face.
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*
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* Options are inside only (with face flush on outside)
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* or with a slot for the face (like a corner cap)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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@ -14,18 +16,44 @@
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#include "stl_3d.h"
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static v3_t avg_x, avg_y, avg_z;
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static void
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print_multmatrix(
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const refframe_t * const ref,
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const int transpose
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)
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{
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printf("multmatrix(m=["
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"[%f,%f,%f,0],"
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"[%f,%f,%f,0],"
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"[%f,%f,%f,0],"
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"[ 0, 0, 0,1]])\n",
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transpose ? ref->x.p[0] : ref->x.p[0],
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transpose ? ref->x.p[1] : ref->y.p[0],
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transpose ? ref->x.p[2] : ref->z.p[0],
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transpose ? ref->y.p[0] : ref->x.p[1],
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transpose ? ref->y.p[1] : ref->y.p[1],
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transpose ? ref->y.p[2] : ref->z.p[1],
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transpose ? ref->z.p[0] : ref->x.p[2],
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transpose ? ref->z.p[1] : ref->y.p[2],
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transpose ? ref->z.p[2] : ref->z.p[2]
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);
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}
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static void
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make_faces(
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const stl_3d_t * const stl,
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const stl_vertex_t * const v,
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const double thickness,
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const double translate,
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const double inset_dist,
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const double hole_dist,
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const double hole_rad
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const double hole_rad,
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const double hole_height
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)
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{
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int * const face_used = calloc(sizeof(*face_used), stl->num_face);
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const double hole_height = 40;
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// generate all of the coplanar polygons at this vertex
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const stl_vertex_t ** const vertex_list = calloc(sizeof(**vertex_list), stl->num_vertex);
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@ -53,24 +81,21 @@ make_faces(
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f->vertex[(start_vertex+2) % 3]->p
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);
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avg_x = v3_add(avg_x, ref.x);
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avg_y = v3_add(avg_y, ref.y);
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avg_z = v3_add(avg_z, ref.z);
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// use the transpose of the rotation matrix,
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// which will rotate from (x,y) to the correct
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// orientation relative to this connector node.
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printf("multmatrix(m=[[%f,%f,%f,0],[%f,%f,%f,0],[%f,%f,%f,0],[0,0,0,1]]) {\n",
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ref.x.p[0],
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ref.y.p[0],
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ref.z.p[0],
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ref.x.p[1],
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ref.y.p[1],
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ref.z.p[1],
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ref.x.p[2],
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ref.y.p[2],
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ref.z.p[2]
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);
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print_multmatrix(&ref, 0);
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printf("{\n");
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// generate the polygon plane
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if (thickness != 0)
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{
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printf("translate([0,0,%f]) linear_extrude(height=%f) polygon(points=[\n",
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-thickness/2,
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translate,
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thickness
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);
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@ -85,9 +110,10 @@ make_faces(
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printf("[%f,%f],", x, y);
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}
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printf("\n]);\n");
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}
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// generate the mounting holes
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if (hole_rad)
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// generate the mounting holes/pins
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if (hole_rad != 0)
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{
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for(int k=0 ; k < vertex_count ; k++)
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{
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@ -97,7 +123,7 @@ make_faces(
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vertex_list[(k+1) % vertex_count]->p,
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vertex_list[(k+2) % vertex_count]->p
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);
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printf("translate([%f,%f,0]) cylinder(r=%f,h=%f, center=true, $fs=1);\n",
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printf("translate([%f,%f,0]) cylinder(r=%f,h=%f, $fs=1);\n",
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x, y,
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hole_rad,
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hole_height
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@ -121,39 +147,56 @@ main(void)
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return EXIT_FAILURE;
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const double thickness = 3;
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const double inset_dist = 2;
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const double hole_dist = 7;
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const double hole_dist = 5;
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const double hole_rad = 3.3/2;
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const double hole_height = 40;
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// for each vertex, find the coplanar triangles
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// \todo: do coplanar bits
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for(int i = 18 ; i < stl->num_vertex ; i++)
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for(int i = 0 ; i < stl->num_vertex ; i++)
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{
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const stl_vertex_t * const v = &stl->vertex[i];
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const v3_t origin = v->p;
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printf("// vertex %d\n"
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"//translate([%f,%f,%f])\n"
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"render() difference()\n"
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"{\n"
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"//sphere(r=%f);\n",
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i, origin.p[0], origin.p[1], origin.p[2], thickness/2);
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"render() difference()\n"
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"{\n",
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i, origin.p[0], origin.p[1], origin.p[2]);
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avg_x.p[0] = avg_x.p[1] = avg_x.p[2] = 0;
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avg_y.p[0] = avg_y.p[1] = avg_y.p[2] = 0;
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avg_z.p[0] = avg_z.p[1] = avg_z.p[2] = 0;
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printf("render() intersection() {\n");
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printf("sphere(r=20);\nunion() {\n");
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make_faces(stl, v, 2*thickness, -thickness/2, 0, 0);
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printf("}\n");
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printf("}\n");
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make_faces(stl, v, thickness, inset_dist, hole_dist, hole_rad);
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//printf("render() intersection() {\n");
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printf("union() {\n");
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make_faces(stl, v, thickness, -thickness, 0, 0, 0, 0);
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printf("}\n");
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//printf("}\n");
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printf("union() {\n");
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// slice away the outer bits
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make_faces(stl, v, thickness, 0, -thickness, 0, 0, 0);
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//make_faces(stl, v, thickness, inset_dist, hole_dist, hole_rad);
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printf("}\n");
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printf("} // difference\n");
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// add back in the mounting pegs
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make_faces(stl, v, 0, 0, 0, hole_dist, hole_rad, thickness);
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printf("} // union\n");
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break;
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//if (i == 0) break; // only do one right now
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}
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refframe_t avg;
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refframe_init(&avg, avg_x, avg_y, avg_z);
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printf("%%");
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print_multmatrix(&avg, 1);
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//printf("translate([0,0,20]) sphere(r=2);\n");
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printf("cube([50,50,50], center=true);\n");
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return 0;
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}
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@ -16,4 +16,4 @@ module tetrahedron()
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);
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}
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scale(100) tetrahedron();
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scale(50) tetrahedron();
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