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jacho |
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/* Version 4 |
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Added bold property bold=0 (not bold) bold=1(bolder by 1.1) bold=2(bolder by 1.2) |
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Added support for font selection (default is Letters.dxf) |
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Added WriteCube module |
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Added Rotate for text (rotates on the plane of the text) |
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Added writesphere |
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Added space= (spacing between characters in char widths) def=1 |
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Added writecylinder() |
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By Harlan Martin |
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harlan@sutlog.com |
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January 2012 |
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(The file TestWrite.scad gives More usage examples) |
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(This module requires the file Letters.dxf to reside in the same folder) |
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(The file Letters.dfx was created with inkscape..Each letter is in its own layer) |
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(This module seperates each letter in the string and imports it from Letters.dfx) |
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*/ |
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pi=3.1415926535897932384626433832795028841971693993751058209; |
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pi2=pi*2; |
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// These control the default values for write() writesphere() writecube() |
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// if the parameters are not included in the call. Feel free to set your own |
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// defaults. |
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//default settings |
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bold=0; |
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center=false; |
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h = 4; //mm letter height |
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t = 1; //mm letter thickness |
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space =1; //extra space between characters in (character widths) |
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rotate=0; // text rotation (clockwise) |
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font = "Letters.dxf"; //default for aditional fonts |
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// write cube defaults |
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face = "front"; // default face (top,bottom,left,right,back,front) |
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up =0; //mm up from center on face of cube |
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down=0; |
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right =0; //mm left from center on face of cube |
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left=0; |
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// write sphere defaults |
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rounded=false; //default for rounded letters on writesphere |
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north=0; // intial text position (I suggest leave these 0 defaults) |
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south=0; |
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east=0; |
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west=0; |
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spin=0; |
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// writecylinder defaults |
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middle=0; //(mm toward middle of circle) |
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ccw=false; //write on top or bottom in a ccw direction |
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r1=0; //(not implimented yet) |
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r2=0; //(not implimented yet) |
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// Contact me if your interested in how to make your own font files |
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// Its tedious and time consuming, but not very hard |
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module writecylinder(text,where,radius,height){ |
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wid=(.125* h *5.5 * space); |
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widall=wid*(len(text)-1)/2; |
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//angle that measures width of letters on sphere |
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function NAngle(radius)=(wid/(pi2*radius))*360; |
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//angle of half width of text |
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function mmangle(radius)=(widall/(pi2*radius)*360); |
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if ((face=="top")||(face=="bottom") ){ |
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if (face=="top" ){ |
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if (center==true){ |
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writecircle(text,where+[0,0,height/2],radius-h,rotate=rotate,font=font,h=h,t=t, |
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space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold); |
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}else{ |
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writecircle(text,where+[0,0,height],radius-h,rotate=rotate,font=font,h=h,t=t, |
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space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold); |
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} |
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}else{ |
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rotate(180,[1,0,0]) |
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if (center==true){ |
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writecircle(text,where+[0,0,height/2],radius-h,rotate=rotate,font=font,h=h,t=t, |
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space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold); |
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}else{ |
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writecircle(text,where+[0,0,0],radius-h,rotate=rotate,font=font,h=h,t=t, |
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space=space,east=east,west=west,middle=middle,ccw=ccw,bold=bold); |
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} |
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} |
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}else{ |
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// if (radius>0){ |
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if (center==true) { |
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rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1]) |
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translate(where) |
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writethecylinder(text,where,radius,height,r1=radius,r2=radius,h=h, |
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rotate=rotate,t=t,font=font,face=face,up=up,down=down, |
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east=east,west=west,center=center,space=space,rounded=rounded,bold=bold); |
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} else{ |
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rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1]) |
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translate(where+[0,0,height/2]) |
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writethecylinder(text,where,radius,height,r1=radius,r2=radius,h=h, |
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rotate=rotate,t=t,font=font,face=face,up=up,down=down, |
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east=east,west=west,center=center,space=space,rounded=rounded,bold=bold); |
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} |
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// the remarked out code is for cone shaped cylinders (not complete) |
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// }else{ |
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// if (center==true) { |
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// rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1]) |
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// translate(where) |
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// writethecylinder(text,where,radius,height,r1=r1,r2=r2,h=h, |
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// rotate=rotate,t=t,font=font,face=face,up=up,down=down, |
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// east=east,west=west,center=center,space=space,rounded=rounded); |
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// } else{ |
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// rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1]) |
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// translate(where+[0,0,height/2]) |
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// writethecylinder(text,where,radius,height,r1=r1,r2=r2,h=h, |
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// rotate=rotate,t=t,font=font,face=face,up=up,down=down, |
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// east=east,west=west,center=center,space=space,rounded=rounded); |
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// } |
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// } |
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} |
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} |
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module writecircle(text,where,radius){ |
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wid=(.125* h *5.5 * space); |
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widall=wid*(len(text)-1)/2; |
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//angle that measures width of letters on sphere |
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function NAngle(radius)=(wid/(pi2*radius))*360; |
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//angle of half width of text |
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function mmangle(radius)=(widall/(pi2*radius)*360); |
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if (ccw==true){ |
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rotate(-rotate+east-west,[0,0,1]){ |
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rotate(-mmangle(radius-middle),[0,0,1]){ |
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translate(where) |
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for (r=[0:len(text)-1]){ |
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rotate(-90+r*NAngle(radius-middle),[0,0,1]) // bottom out=-270+r |
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translate([radius-middle,0,0]) |
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//rotate(90,[1,0,0]) |
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//rotate(90,[0,1,0]) |
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rotate(-270,[0,0,1]) // flip text (botom out = -270) |
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write(text[r],center=true,h=h,t=t,font=font,bold=bold); |
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} |
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} |
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} |
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}else{ |
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rotate(-rotate-east+west,[0,0,1]){ |
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rotate(mmangle(radius-middle),[0,0,1]){ |
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translate(where) |
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for (r=[0:len(text)-1]){ |
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rotate(90-r*NAngle(radius-middle),[0,0,1]) // bottom out=-270+r |
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translate([radius-middle,0,0]) |
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//rotate(90,[1,0,0]) |
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//rotate(90,[0,1,0]) |
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rotate(270,[0,0,1]) // flip text (botom out = -270) |
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write(text[r],center=true,h=h,t=t,font=font,bold=bold); |
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} |
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} |
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} |
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} |
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} |
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module writethecylinder(text,where,radius,height,r1,r2){ |
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wid=(.125* h *5.5 * space); |
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widall=wid*(len(text)-1)/2; |
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//angle that measures width of letters on sphere |
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function NAngle(radius)=(wid/(pi2*radius))*360*(1-abs(rotate)/90); |
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//angle of half width of text |
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function mmangle(radius)=(widall/(pi2*radius)*360); |
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translate([0,0,up-down]) |
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rotate(east-west,[0,0,1]) |
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for (r=[0:len(text)-1]){ |
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rotate(-90+(r*NAngle(radius)),[0,0,1]) |
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translate([radius,0,-r*((rotate)/90*wid)+(len(text)-1)/2*((rotate)/90*wid)]) |
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rotate(90,[1,0,0]) |
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rotate(90,[0,1,0]) |
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write(text[r],center=true,h=h,rotate=rotate,t=t,font=font,bold=bold); |
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//echo("zloc=",height/2-r*((rotate)/90*wid)+(len(text)-1)/2*((rotate)/90*wid)); |
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} |
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} |
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module writesphere(text,where,radius){ |
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wid=(.125* h *5.5 * space); |
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widall=wid*(len(text)-1)/2; |
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echo("-----------------",widall,wid,mmangle(radius)); |
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//angle that measures width of letters on sphere |
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function NAngle(radius)=(wid/(pi2*radius))*360; |
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//angle of half width of text |
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function mmangle(radius)=(widall/(pi2*radius)*360); |
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rotate(east-west,[0,0,1]){ |
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rotate(south-north,[1,0,0]){ |
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rotate(spin,[0,1,0]){ |
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rotate(-mmangle(radius),[0,0,1]){ |
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if ( rounded== false ){ |
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translate(where) |
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for (r=[0:len(text)-1]){ |
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rotate(-90+r*NAngle(radius),[0,0,1]) |
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translate([radius,0,0]) |
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rotate(90,[1,0,0]) |
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rotate(90,[0,1,0]) |
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write(text[r],center=true,h=h,rotate=rotate,t=t,font=font,bold=bold); |
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} |
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}else{ |
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difference(){ |
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translate(where) |
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for (r=[0:len(text)-1]){ |
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rotate(-90+r*NAngle(radius),[0,0,1]) |
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translate([radius,0,0]) |
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rotate(90,[1,0,0]) |
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rotate(90,[0,1,0]) |
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write(text[r],center=true,h=h,rotate=rotate,t=t*2+h,font=font,bold=bold); |
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} |
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difference(){ //rounded outside |
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sphere(radius+(t*2+h)*2); |
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sphere(radius+t/2); |
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} |
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sphere(radius-t/2); // rounded inside for indented text |
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} |
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} |
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} |
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}}} |
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} |
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module writecube(text,where,size){ |
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if (str(size)[0] != "["){ |
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// its a square cube (size was not a matrix so make it one) |
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writethecube(text,where,[size,size,size],h=h,rotate=rotate,space=space, |
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t=t,font=font,face=face,up=up,down=down,right=right,left=left,bold=bold); |
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}else{ |
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// its not square |
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writethecube(text,where,size,h=h,rotate=rotate,space=space, |
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t=t,font=font,face=face,up=up,down=down,right=right,left=left,bold=bold); |
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} |
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} |
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// I split the writecube module into 2 pieces.. easier to add features later |
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module writethecube(text,where,size){ |
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if (face=="front") { |
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translate([where[0]+right-left,where[1]-size[1]/2,where[2]+up-down]) |
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rotate(90,[1,0,0]) |
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write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold); |
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} |
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if (face=="back") { |
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translate([where[0]+right-left,where[1]+size[1]/2,where[2]+up-down]) |
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rotate(90,[1,0,0]) // rotate around the x axis |
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rotate(180,[0,1,0]) // rotate around the y axis (z before rotation) |
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write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold); |
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} |
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if (face=="left") { |
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translate([where[0]-size[0]/2,where[1]-right+left,where[2]+up-down ]) |
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rotate(90,[1,0,0]) // rotate around the x axis |
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rotate(90,[0,-1,0]) // rotate around the y axis (z before rotation) |
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write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold); |
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} |
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if (face=="right") { |
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translate([where[0]+size[0]/2,where[1]+right-left,where[2] +up-down]) |
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rotate(90,[1,0,0]) // rotate around the x axis |
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rotate(90,[0,1,0]) // rotate around the y axis (z before rotation) |
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write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold); |
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} |
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if (face=="top") { |
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translate([where[0]+right-left,where[1]+up-down,where[2]+size[2]/2 ]) |
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write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold); |
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} |
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if (face=="bottom") { |
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translate([where[0]+right-left,where[1]-up+down,where[2]-size[2]/2 ]) |
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rotate(180,[1,0,0]) |
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write(text,center=true,h=h,rotate=rotate,t=t,font=font,space=space,bold=bold); |
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} |
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} |
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module write(word){ |
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echo (h); |
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echo (word); |
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echo ("There are " ,len(word) ," letters in this string"); |
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// echo ("The second letter is ",word[1]); |
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// echo (str(word[0],"_")); |
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minkowski() { |
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rotate(rotate,[0,0,-1]){ |
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for (r = [0:len(word)]){ // count off each character |
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// if the letter is lower case, add an underscore to the end for file lookup |
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if ((word[r] == "a" ) || (word[r]== "b") || (word[r]== "c") |
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|| (word[r]== "d") || (word[r]== "e") || (word[r]== "f") |
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|| (word[r]== "g") || (word[r]== "h") || (word[r]== "i") |
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|| (word[r]== "j") || (word[r]== "k") || (word[r]== "l") |
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|| (word[r]== "m") || (word[r]== "n") || (word[r]== "o") |
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|| (word[r]== "p") || (word[r]== "q") || (word[r]== "r") |
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|| (word[r]== "s") || (word[r]== "t") || (word[r]== "u") |
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|| (word[r]== "v") || (word[r]== "w") || (word[r]== "x") |
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|| (word[r]== "y" )|| (word[r]== "z")){ |
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if (center == true) { |
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translate([0,-h/2,0]){ |
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scale([.125*h,.125*h,t]){ |
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translate([ (-len(word)*5.5*space/2) + (r*5.5*space),0,0]) |
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//offset(delta = 20, join_type = "round") { |
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linear_extrude(height=1,convexity=10,center=true){ |
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import(file = font,layer=str(word[r],"_")); |
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}//} |
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} |
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} |
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}else{ |
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translate([0,0,t/2]){ |
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scale([.125*h,.125*h,t]){ |
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translate([r*5.5*space,0,0]) |
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//offset(delta = 20, join_type = "round") { |
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linear_extrude(height=1,convexity=10,center=true){ |
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import(file = font,layer=str(word[r],"_")); |
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}//} |
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} |
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} |
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} |
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}else{ |
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if (center == true) { |
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translate([0,-h/2,0]){ |
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scale([.125*h,.125*h,t]){ |
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translate([ (-len(word)*5.5*space/2) + (r*5.5*space),0,0]) |
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//offset(delta = 20, join_type = "round") { |
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linear_extrude(height=1,convexity=10,center=true){ |
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|
331 |
import(file = font,layer=str(word[r])); |
|
|
332 |
}//} |
|
|
333 |
} |
|
|
334 |
} |
|
|
335 |
}else{ |
|
|
336 |
translate([0,0,t/2]){ |
|
|
337 |
scale([.125*h,.125*h,t]){ |
|
|
338 |
translate([r*5.5*space,0,0]) |
|
|
339 |
//offset(delta = 20, join_type = "round") { |
|
|
340 |
linear_extrude(height=1,convexity=10,center=true){ |
|
|
341 |
import(file = font,layer=str(word[r])); |
|
|
342 |
}//} |
|
|
343 |
} |
|
|
344 |
} |
|
|
345 |
} |
|
|
346 |
} |
|
|
347 |
} |
|
|
348 |
} |
|
|
349 |
cube([bold*.1*h,bold*.1*h,.00001]); |
|
|
350 |
} |
|
|
351 |
} |
|
|
352 |
|
|
|
353 |
/*writecylinder test |
|
|
354 |
translate([0,0,0]) |
|
|
355 |
%cylinder(r=20,h=40,center=true); |
|
|
356 |
color([1,0,0]) |
|
|
357 |
writecylinder("rotate=90",[0,0,0],20,40,center=true,down=0,rotate=90); |
|
|
358 |
writecylinder("rotate = 30,east = 90",[0,0,0],20,40,center=true,down=0,rotate=30,east=90); |
|
|
359 |
writecylinder("ccw = true",[0,0,0],20,40,center=true,down=0,face="top",ccw=true); |
|
|
360 |
writecylinder("middle = 8",[0,0,0],20,40,h=3,center=true,down=0,face="top",middle=8); |
|
|
361 |
writecylinder("face = top",[0,0,0],20,40,center=true,down=0,face="top"); |
|
|
362 |
writecylinder("east=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",east=90); |
|
|
363 |
writecylinder("west=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",ccw=true,west=90); |
|
|
364 |
writecylinder("face = bottom",[0,0,0],20,40,center=true,down=0,face="bottom"); |
|
|
365 |
*/ |
|
|
366 |
/*writesphere test |
|
|
367 |
sphere(20); |
|
|
368 |
color([1,0,0]) |
|
|
369 |
writesphere("Hello World",[0,0,0],20,t=1,h=6); |
|
|
370 |
*/ |
|
|
371 |
/* writecube test |
|
|
372 |
translate([30,30,30]) |
|
|
373 |
cube([10,15,30],center=true); |
|
|
374 |
write("hello",center=true,rotate =30); |
|
|
375 |
color([1,0,0]) |
|
|
376 |
writecube( "front",[30,30,30],[10,15,30],h=5,rotate=-90); |
|
|
377 |
color([0,1,0]) |
|
|
378 |
writecube( "back",[30,30,30],size=[10,15,30],h=5,face="back",rotate=90,t=4); |
|
|
379 |
color([0,0,1]) |
|
|
380 |
writecube( "left",[30,30,30],[10,15,30],h=5,face="left",up=5); |
|
|
381 |
color([1,1,0]) |
|
|
382 |
writecube( "right",where=[30,30,30],size=[10,15,30],h=5,face="right",rotate=55); |
|
|
383 |
color([1,0,1]) |
|
|
384 |
writecube( "top",where=[30,30,30],size=[10,15,30],h=5,face="top"); |
|
|
385 |
color([1,1,1]) |
|
|
386 |
writecube( "bttm",where=[30,30,30],size=[10,15,30],h=5,face="bottom",rotate=90); |
|
|
387 |
*/ |
|
|
388 |
|