lsp help for finding the scale factor of two selected objects! example: circle

[jamesfui]

hi.. need help on creating lsp that can:

 

> find the scale factors on two selected objects & insert to dwg as dtext!

 

example;

```````

select the two objects with different sizes;

circle_1: diameter = 1500

circle_2: diameter = 1200

 

calculated scale factor for [circle_1/circle_2] = [1500/1200] = 1.25

if circle_2 is selected first, it will then be [circle_2/circle_1] = [1200/1500] = 0.8

 

ask for insertion point to insert the calculated scale factor as dtext on drawing!

or just display on the command window or prompt it...

 

thanks

[alanjt]

What all object types are you wanting to query?

[Lee Mac]

Since its only a ratio you are looking for, quickest way might be to use the ratio of the length of the diagonal of the bounding box for each object, this would allow any two objects to be compared - of course, the result would only be meaningful if the two objects were proportional.

[alanjt]

Since its only a ratio you are looking for, quickest way might be to use the ratio of the length of the diagonal of the bounding box for each object, this would allow any two objects to be compared - of course, the result would only be meaningful if the two objects were proportional.

Good idea (iff proportional). If using the bounding box, you should be able to take the length b/w the min and max points of each object and calc the scale ratio.

[Lee Mac]

If using the bounding box, you should be able to take the length b/w the min and max points of each object and calc the scale ratio.

 

Exactly - the diagonal.

[alanjt]

Exactly - the diagonal.

Oops, I completely missed where you said diagonal and interpreted it as you wanted to take the ratio of the width and height.