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Diffstat (limited to 'bin/embolden')
| -rw-r--r-- | bin/embolden | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/bin/embolden b/bin/embolden new file mode 100644 index 0000000..7b1d951 --- /dev/null +++ b/bin/embolden @@ -0,0 +1,42 @@ +/* + +so, we have a line. + +from 0,0 to 10,0 + +and we want it to transform into a rectangle at about... + +-1,-1 1,-1 1,11 -1,11 + +I guess we're taking each point and pushing it away from itself. + +so 0,0... we can make into a square. we need to push in a direction based on the direction of the other half of the line + +so a=points_to_angle(p1,p2) + +which is 90deg in this case from 0,0 to 10,0 +and we need to push 0,0 in two directions to create two new points +at angles... +90+135 and 90+135+90 + +a+135 and a+135+90 + +now to pick an emboldeness amount. sqrt(2) will get us to the original points I guessed at earlier. + +#define embolden(p1,p2,angle,dist) + +if(s.len == 2) { + a1=points_to_angle(p1,p2); + a2=points_to_angle(p2,p1); + d=1;//how far to embolden + //a2 = (a1 + 180) % 360 + s[0]=c3_add(s.p[0],(c3_t){sin(a2+45)*d,cos(a2+45)*d,0}) + s[1]=c3_add(s.p[0],(c3_t){sin(a2-45)*d,cos(a2-45)*d,0}) + s[2]=c3_add(s.p[1],(c3_t){sin(a1+45)*d,cos(a1+45)*d,0}) + s[3]=c3_add(s.p[1],(c3_t){sin(a1-45)*d,cos(a1-45)*d,0}) +} + +//this can be a script. it'll turn lines into rectangles. +//could be done with awk probably. +//base it on offsetshape? +//maybe just do it in python. |