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simplified the math to use rotates instead, added examples, and allowed the user to choose witch plane the x,y and z dimensions are in

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Alex Verschoot
2025-03-15 21:28:33 +01:00
parent f731f0fe98
commit 106666ec49
2 changed files with 52 additions and 35 deletions
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68
utils/dimension.scad
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@@ -27,7 +27,7 @@ include <../utils/maths.scad>
//if text is empty, will display the number value
module dimension(startpoint, endpoint, text = "", thickness = 0.1, rot_around_dim = 0) {
module dimension(startpoint, endpoint, text = "", thickness = 0.1, rot_around_dim=0) {
// Compute vector between points
direction = endpoint - startpoint;
length = norm(direction);
@@ -39,42 +39,56 @@ module dimension(startpoint, endpoint, text = "", thickness = 0.1, rot_around_di
// Compute rotation angles
azimuth = atan2(direction.y, direction.x);
elevation = -atan2(direction.z, dir_xy);
//end triangle size
etr_width = thickness *5;
etr_height = thickness *3;
// Draw measurement line as a thin cylinder
translate(midpoint)
rotate([0, elevation, azimuth])
rotate([0, 90, 0])
cylinder(d = thickness, h = length - thickness * 2, center = true);
resize([thickness, thickness, length - etr_width+0.01 ])
cube(center = true);
//do some vector calculations
dir = (length > 0) ? (direction / length) * thickness * 4 : [1, 0, 0];
//up_dir = transform([0,1,0], rotate(azimuth));
//depth_dir = transform([0,0,1], rotate(azimuth));
// Draw endpoint markers
translate(startpoint)
rotate([0, elevation - 90, azimuth])
translate([0, 0, -thickness * 4])
cylinder(h = thickness * 4, r1 = thickness * 2, r2 = 0);
rotate([0, elevation, azimuth])
rotate([rot_around_dim,0,0])
translate([0,0,-thickness/2])
linear_extrude(thickness)
polygon([[etr_width, etr_height/2],[0,0],[etr_width, -etr_height/2]],[[0,1,2]]);
translate(endpoint)
rotate([0, elevation + 90, azimuth])
translate([0, 0, -thickness * 4])
cylinder(h = thickness * 4, r1 = thickness * 2, r2 = 0);
rotate([0, elevation, azimuth])
rotate([rot_around_dim,0,0])
translate([0,0,-thickness/2])
linear_extrude(thickness)
polygon([[-etr_width, etr_height/2],[0,0],[-etr_width, -etr_height/2]],[[0,1,2]]);
// Draw the text/distance
dir = (length > 0) ? (direction / length) * thickness * 4 : [1, 0, 0];
up_dir = transform([0,1,0], rotate(azimuth));
depth_dir = transform([0,0,1], rotate(azimuth));
rotate(direction*rot_around_dim/2)
translate(midpoint + up_dir*thickness - depth_dir*thickness/2)
translate(midpoint)
rotate([0, elevation, azimuth])
rotate([rot_around_dim,0,0])
translate([0,thickness,-thickness/2])
linear_extrude(thickness)
text(text == "" ? str(length) : text, size = thickness * 5, valign = "bottom", halign = "center");
}
//offset will detirmine how much space is between the measured point and the dimension
//for x, this offset will be in the y direction
module dimension_x(startpoint, endpoint, offset = 1, text = "", thickness = 0.1) {
y = max(startpoint.y, endpoint.y) + offset;
z = max(startpoint.z, endpoint.z) ;
dimension([startpoint.x, y, z], [endpoint.x, y, z], text, thickness);
//plane options : xy, xz
module dimension_x(startpoint, endpoint, offset = 1, text = "", thickness = 0.1, plane = "xy") {
y = max(startpoint.y, endpoint.y) + (plane=="xy"?offset:0);
z = max(startpoint.z, endpoint.z) + (plane=="xz"?offset:0);
dimension([startpoint.x, y, z], [endpoint.x, y, z], text, thickness, rot_around_dim=(plane=="xz"?90:0));
v1= [startpoint.x, y, z]-startpoint;
h1 = norm(v1);
@@ -97,10 +111,11 @@ module dimension_x(startpoint, endpoint, offset = 1, text = "", thickness = 0.1)
//offset will detirmine how much space is between the measured point and the dimension
//for y, this offset will be in the x direction
module dimension_y(startpoint, endpoint, offset = 1, text = "", thickness = 0.1) {
x = max(startpoint.x, endpoint.x) + offset;
z = max(startpoint.z, endpoint.z) ;
dimension([x, startpoint.y, z], [x, endpoint.y, z], text, thickness);
//plane options : xy, yz
module dimension_y(startpoint, endpoint, offset = 1, text = "", thickness = 0.1, plane = "xy") {
x = max(startpoint.x, endpoint.x) + (plane=="xy"?offset:0);
z = max(startpoint.z, endpoint.z) + (plane=="yz"?offset:0);
dimension([x, startpoint.y, z], [x, endpoint.y, z], text, thickness, rot_around_dim=(plane=="yz"?90:0));
v1= [x, startpoint.y, z]-startpoint;
h1 = norm(v1);
@@ -124,10 +139,11 @@ module dimension_y(startpoint, endpoint, offset = 1, text = "", thickness = 0.1)
//offset will detirmine how much space is between the measured point and the dimension
//for z, this offset will be in the x direction
module dimension_z(startpoint, endpoint, offset = 1, text = "", thickness = 0.1) {
x = max(startpoint.x, endpoint.x) + offset;
y = max(startpoint.y, endpoint.y) ;
dimension([x, y, startpoint.z], [x, y, endpoint.z], text, thickness);
//plane options : xz, yz
module dimension_z(startpoint, endpoint, offset = 1, text = "", thickness = 0.1, plane = "xz") {
x = max(startpoint.x, endpoint.x) + (plane=="xz"?offset:0);
y = max(startpoint.y, endpoint.y) + (plane=="yz"?offset:0);
dimension([x, y, startpoint.z], [x, y, endpoint.z], text, thickness, rot_around_dim=(plane=="xz"?90:0));
v1= [x, y, startpoint.z]-startpoint;
h1 = norm(v1);