389 lines
13 KiB
OpenSCAD
389 lines
13 KiB
OpenSCAD
/* Version 4
|
|
Added bold property bold=0 (not bold) bold=1(bolder by 1.1) bold=2(bolder by 1.2)
|
|
Added support for font selection (default is Letters.dxf)
|
|
Added WriteCube module
|
|
Added Rotate for text (rotates on the plane of the text)
|
|
Added writesphere
|
|
Added space= (spacing between characters in char widths) def=1
|
|
Added writecylinder()
|
|
|
|
By Harlan Martin
|
|
harlan@sutlog.com
|
|
January 2012
|
|
|
|
(The file TestWrite.scad gives More usage examples)
|
|
(This module requires the file Letters.dxf to reside in the same folder)
|
|
(The file Letters.dfx was created with inkscape..Each letter is in its own layer)
|
|
(This module seperates each letter in the string and imports it from Letters.dfx)
|
|
|
|
*/
|
|
|
|
pi=3.1415926535897932384626433832795028841971693993751058209;
|
|
pi2=pi*2;
|
|
|
|
|
|
// These control the default values for write() writesphere() writecube()
|
|
// if the parameters are not included in the call. Feel free to set your own
|
|
// defaults.
|
|
|
|
//default settings
|
|
bold=0;
|
|
center=false;
|
|
h = 4; //mm letter height
|
|
t = 1; //mm letter thickness
|
|
space =1; //extra space between characters in (character widths)
|
|
rotate=0; // text rotation (clockwise)
|
|
font = "Letters.dxf"; //default for aditional fonts
|
|
|
|
|
|
// write cube defaults
|
|
face = "front"; // default face (top,bottom,left,right,back,front)
|
|
up =0; //mm up from center on face of cube
|
|
down=0;
|
|
right =0; //mm left from center on face of cube
|
|
left=0;
|
|
|
|
|
|
// write sphere defaults
|
|
rounded=false; //default for rounded letters on writesphere
|
|
north=0; // intial text position (I suggest leave these 0 defaults)
|
|
south=0;
|
|
east=0;
|
|
west=0;
|
|
spin=0;
|
|
// writecylinder defaults
|
|
middle=0; //(mm toward middle of circle)
|
|
ccw=false; //write on top or bottom in a ccw direction
|
|
r1=0; //(not implimented yet)
|
|
r2=0; //(not implimented yet)
|
|
|
|
|
|
|
|
// Contact me if your interested in how to make your own font files
|
|
// Its tedious and time consuming, but not very hard
|
|
|
|
|
|
module writecylinder(text,where,radius,height){
|
|
wid=(.125* h *5.5 * space);
|
|
widall=wid*(len(text)-1)/2;
|
|
//angle that measures width of letters on sphere
|
|
function NAngle(radius)=(wid/(pi2*radius))*360;
|
|
//angle of half width of text
|
|
function mmangle(radius)=(widall/(pi2*radius)*360);
|
|
|
|
if ((face=="top")||(face=="bottom") ){
|
|
if (face=="top" ){
|
|
if (center==true){
|
|
writecircle(text,where+[0,0,height/2],radius-h,rotate=rotate,font=font,h=h,t=t,
|
|
space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold);
|
|
}else{
|
|
writecircle(text,where+[0,0,height],radius-h,rotate=rotate,font=font,h=h,t=t,
|
|
space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold);
|
|
}
|
|
}else{
|
|
rotate(180,[1,0,0])
|
|
if (center==true){
|
|
writecircle(text,where+[0,0,height/2],radius-h,rotate=rotate,font=font,h=h,t=t,
|
|
space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold);
|
|
}else{
|
|
writecircle(text,where+[0,0,0],radius-h,rotate=rotate,font=font,h=h,t=t,
|
|
space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold);
|
|
}
|
|
}
|
|
|
|
}else{
|
|
// if (radius>0){
|
|
if (center==true) {
|
|
rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
|
|
translate(where)
|
|
writethecylinder(text,where,radius,height,r1=radius,r2=radius,h=h,
|
|
rotate=rotate,t=t,font=font,face=face,up=up,down=down,
|
|
east=east,west=west,center=center,space=space,rounded=rounded,bold=bold);
|
|
} else{
|
|
rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
|
|
translate(where+[0,0,height/2])
|
|
writethecylinder(text,where,radius,height,r1=radius,r2=radius,h=h,
|
|
rotate=rotate,t=t,font=font,face=face,up=up,down=down,
|
|
east=east,west=west,center=center,space=space,rounded=rounded,bold=bold);
|
|
}
|
|
// the remarked out code is for cone shaped cylinders (not complete)
|
|
// }else{
|
|
// if (center==true) {
|
|
// rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
|
|
// translate(where)
|
|
// writethecylinder(text,where,radius,height,r1=r1,r2=r2,h=h,
|
|
// rotate=rotate,t=t,font=font,face=face,up=up,down=down,
|
|
// east=east,west=west,center=center,space=space,rounded=rounded);
|
|
// } else{
|
|
// rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
|
|
// translate(where+[0,0,height/2])
|
|
// writethecylinder(text,where,radius,height,r1=r1,r2=r2,h=h,
|
|
// rotate=rotate,t=t,font=font,face=face,up=up,down=down,
|
|
// east=east,west=west,center=center,space=space,rounded=rounded);
|
|
// }
|
|
// }
|
|
}
|
|
}
|
|
module writecircle(text,where,radius){
|
|
wid=(.125* h *5.5 * space);
|
|
widall=wid*(len(text)-1)/2;
|
|
//angle that measures width of letters on sphere
|
|
function NAngle(radius)=(wid/(pi2*radius))*360;
|
|
//angle of half width of text
|
|
function mmangle(radius)=(widall/(pi2*radius)*360);
|
|
|
|
if (ccw==true){
|
|
rotate(-rotate+east-west,[0,0,1]){
|
|
rotate(-mmangle(radius-middle),[0,0,1]){
|
|
translate(where)
|
|
for (r=[0:len(text)-1]){
|
|
rotate(-90+r*NAngle(radius-middle),[0,0,1]) // bottom out=-270+r
|
|
translate([radius-middle,0,0])
|
|
//rotate(90,[1,0,0])
|
|
//rotate(90,[0,1,0])
|
|
rotate(-270,[0,0,1]) // flip text (botom out = -270)
|
|
write(text[r],center=true,h=h,t=t,font=font,bold=bold);
|
|
}
|
|
}
|
|
}
|
|
}else{
|
|
rotate(-rotate-east+west,[0,0,1]){
|
|
rotate(mmangle(radius-middle),[0,0,1]){
|
|
translate(where)
|
|
for (r=[0:len(text)-1]){
|
|
rotate(90-r*NAngle(radius-middle),[0,0,1]) // bottom out=-270+r
|
|
translate([radius-middle,0,0])
|
|
//rotate(90,[1,0,0])
|
|
//rotate(90,[0,1,0])
|
|
rotate(270,[0,0,1]) // flip text (botom out = -270)
|
|
write(text[r],center=true,h=h,t=t,font=font,bold=bold);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
module writethecylinder(text,where,radius,height,r1,r2){
|
|
wid=(.125* h *5.5 * space);
|
|
widall=wid*(len(text)-1)/2;
|
|
//angle that measures width of letters on sphere
|
|
function NAngle(radius)=(wid/(pi2*radius))*360*(1-abs(rotate)/90);
|
|
//angle of half width of text
|
|
|
|
function mmangle(radius)=(widall/(pi2*radius)*360);
|
|
translate([0,0,up-down])
|
|
rotate(east-west,[0,0,1])
|
|
for (r=[0:len(text)-1]){
|
|
rotate(-90+(r*NAngle(radius)),[0,0,1])
|
|
translate([radius,0,-r*((rotate)/90*wid)+(len(text)-1)/2*((rotate)/90*wid)])
|
|
rotate(90,[1,0,0])
|
|
rotate(90,[0,1,0])
|
|
write(text[r],center=true,h=h,rotate=rotate,t=t,font=font,bold=bold);
|
|
//echo("zloc=",height/2-r*((rotate)/90*wid)+(len(text)-1)/2*((rotate)/90*wid));
|
|
}
|
|
|
|
}
|
|
|
|
|
|
module writesphere(text,where,radius){
|
|
wid=(.125* h *5.5 * space);
|
|
widall=wid*(len(text)-1)/2;
|
|
|
|
echo("-----------------",widall,wid,mmangle(radius));
|
|
//angle that measures width of letters on sphere
|
|
function NAngle(radius)=(wid/(pi2*radius))*360;
|
|
//angle of half width of text
|
|
function mmangle(radius)=(widall/(pi2*radius)*360);
|
|
|
|
rotate(east-west,[0,0,1]){
|
|
rotate(south-north,[1,0,0]){
|
|
rotate(spin,[0,1,0]){
|
|
rotate(-mmangle(radius),[0,0,1]){
|
|
if ( rounded== false ){
|
|
translate(where)
|
|
for (r=[0:len(text)-1]){
|
|
rotate(-90+r*NAngle(radius),[0,0,1])
|
|
translate([radius,0,0])
|
|
rotate(90,[1,0,0])
|
|
rotate(90,[0,1,0])
|
|
write(text[r],center=true,h=h,rotate=rotate,t=t,font=font,bold=bold);
|
|
}
|
|
}else{
|
|
difference(){
|
|
translate(where)
|
|
for (r=[0:len(text)-1]){
|
|
rotate(-90+r*NAngle(radius),[0,0,1])
|
|
translate([radius,0,0])
|
|
rotate(90,[1,0,0])
|
|
rotate(90,[0,1,0])
|
|
write(text[r],center=true,h=h,rotate=rotate,t=t*2+h,font=font,bold=bold);
|
|
}
|
|
difference(){ //rounded outside
|
|
sphere(radius+(t*2+h)*2);
|
|
sphere(radius+t/2);
|
|
}
|
|
sphere(radius-t/2); // rounded inside for indented text
|
|
}
|
|
}
|
|
}
|
|
}}}
|
|
}
|
|
|
|
|
|
module writecube(text,where,size){
|
|
if (str(size)[0] != "["){
|
|
// its a square cube (size was not a matrix so make it one)
|
|
writethecube(text,where,[size,size,size],h=h,rotate=rotate,space=space,
|
|
t=t,font=font,face=face,up=up,down=down,right=right,left=left,bold=bold);
|
|
|
|
}else{
|
|
// its not square
|
|
writethecube(text,where,size,h=h,rotate=rotate,space=space,
|
|
t=t,font=font,face=face,up=up,down=down,right=right,left=left,bold=bold);
|
|
}
|
|
}
|
|
// I split the writecube module into 2 pieces.. easier to add features later
|
|
module writethecube(text,where,size){
|
|
if (face=="front") {
|
|
translate([where[0]+right-left,where[1]-size[1]/2,where[2]+up-down])
|
|
rotate(90,[1,0,0])
|
|
write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold);
|
|
}
|
|
if (face=="back") {
|
|
translate([where[0]+right-left,where[1]+size[1]/2,where[2]+up-down])
|
|
rotate(90,[1,0,0]) // rotate around the x axis
|
|
rotate(180,[0,1,0]) // rotate around the y axis (z before rotation)
|
|
write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold);
|
|
}
|
|
if (face=="left") {
|
|
translate([where[0]-size[0]/2,where[1]-right+left,where[2]+up-down ])
|
|
rotate(90,[1,0,0]) // rotate around the x axis
|
|
rotate(90,[0,-1,0]) // rotate around the y axis (z before rotation)
|
|
write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold);
|
|
}
|
|
if (face=="right") {
|
|
translate([where[0]+size[0]/2,where[1]+right-left,where[2] +up-down])
|
|
rotate(90,[1,0,0]) // rotate around the x axis
|
|
rotate(90,[0,1,0]) // rotate around the y axis (z before rotation)
|
|
write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold);
|
|
}
|
|
if (face=="top") {
|
|
translate([where[0]+right-left,where[1]+up-down,where[2]+size[2]/2 ])
|
|
write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold);
|
|
}
|
|
if (face=="bottom") {
|
|
translate([where[0]+right-left,where[1]-up+down,where[2]-size[2]/2 ])
|
|
rotate(180,[1,0,0])
|
|
write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold);
|
|
}
|
|
}
|
|
|
|
module write(word){
|
|
|
|
echo (h);
|
|
echo (word);
|
|
echo ("There are " ,len(word) ," letters in this string");
|
|
// echo ("The second letter is ",word[1]);
|
|
// echo (str(word[0],"_"));
|
|
minkowski() {
|
|
rotate(rotate,[0,0,-1]){
|
|
|
|
for (r = [0:len(word)]){ // count off each character
|
|
// if the letter is lower case, add an underscore to the end for file lookup
|
|
if ((word[r] == "a" ) || (word[r]== "b") || (word[r]== "c")
|
|
|| (word[r]== "d") || (word[r]== "e") || (word[r]== "f")
|
|
|| (word[r]== "g") || (word[r]== "h") || (word[r]== "i")
|
|
|| (word[r]== "j") || (word[r]== "k") || (word[r]== "l")
|
|
|| (word[r]== "m") || (word[r]== "n") || (word[r]== "o")
|
|
|| (word[r]== "p") || (word[r]== "q") || (word[r]== "r")
|
|
|| (word[r]== "s") || (word[r]== "t") || (word[r]== "u")
|
|
|| (word[r]== "v") || (word[r]== "w") || (word[r]== "x")
|
|
|| (word[r]== "y" )|| (word[r]== "z")){
|
|
if (center == true) {
|
|
translate([0,-h/2,0]){
|
|
scale([.125*h,.125*h,t]){
|
|
translate([ (-len(word)*5.5*space/2) + (r*5.5*space),0,0])
|
|
//offset(delta = 20, join_type = "round") {
|
|
linear_extrude(height=1,convexity=10,center=true){
|
|
import(file = font,layer=str(word[r],"_"));
|
|
}//}
|
|
}
|
|
}
|
|
}else{
|
|
translate([0,0,t/2]){
|
|
scale([.125*h,.125*h,t]){
|
|
translate([r*5.5*space,0,0])
|
|
//offset(delta = 20, join_type = "round") {
|
|
linear_extrude(height=1,convexity=10,center=true){
|
|
import(file = font,layer=str(word[r],"_"));
|
|
}//}
|
|
}
|
|
}
|
|
}
|
|
|
|
}else{
|
|
if (center == true) {
|
|
translate([0,-h/2,0]){
|
|
scale([.125*h,.125*h,t]){
|
|
translate([ (-len(word)*5.5*space/2) + (r*5.5*space),0,0])
|
|
//offset(delta = 20, join_type = "round") {
|
|
linear_extrude(height=1,convexity=10,center=true){
|
|
import(file = font,layer=str(word[r]));
|
|
}//}
|
|
}
|
|
}
|
|
}else{
|
|
translate([0,0,t/2]){
|
|
scale([.125*h,.125*h,t]){
|
|
translate([r*5.5*space,0,0])
|
|
//offset(delta = 20, join_type = "round") {
|
|
linear_extrude(height=1,convexity=10,center=true){
|
|
import(file = font,layer=str(word[r]));
|
|
}//}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
cube([bold*.1*h,bold*.1*h,.00001]);
|
|
}
|
|
}
|
|
|
|
/*writecylinder test
|
|
translate([0,0,0])
|
|
%cylinder(r=20,h=40,center=true);
|
|
color([1,0,0])
|
|
writecylinder("rotate=90",[0,0,0],20,40,center=true,down=0,rotate=90);
|
|
writecylinder("rotate = 30,east = 90",[0,0,0],20,40,center=true,down=0,rotate=30,east=90);
|
|
writecylinder("ccw = true",[0,0,0],20,40,center=true,down=0,face="top",ccw=true);
|
|
writecylinder("middle = 8",[0,0,0],20,40,h=3,center=true,down=0,face="top",middle=8);
|
|
writecylinder("face = top",[0,0,0],20,40,center=true,down=0,face="top");
|
|
writecylinder("east=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",east=90);
|
|
writecylinder("west=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",ccw=true,west=90);
|
|
writecylinder("face = bottom",[0,0,0],20,40,center=true,down=0,face="bottom");
|
|
*/
|
|
/*writesphere test
|
|
sphere(20);
|
|
color([1,0,0])
|
|
writesphere("Hello World",[0,0,0],20,t=1,h=6);
|
|
*/
|
|
/* writecube test
|
|
translate([30,30,30])
|
|
cube([10,15,30],center=true);
|
|
write("hello",center=true,rotate =30);
|
|
color([1,0,0])
|
|
writecube( "front",[30,30,30],[10,15,30],h=5,rotate=-90);
|
|
color([0,1,0])
|
|
writecube( "back",[30,30,30],size=[10,15,30],h=5,face="back",rotate=90,t=4);
|
|
color([0,0,1])
|
|
writecube( "left",[30,30,30],[10,15,30],h=5,face="left",up=5);
|
|
color([1,1,0])
|
|
writecube( "right",where=[30,30,30],size=[10,15,30],h=5,face="right",rotate=55);
|
|
color([1,0,1])
|
|
writecube( "top",where=[30,30,30],size=[10,15,30],h=5,face="top");
|
|
color([1,1,1])
|
|
writecube( "bttm",where=[30,30,30],size=[10,15,30],h=5,face="bottom",rotate=90);
|
|
*/
|
|
|