Visual Measurer

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 05/09/2012 at 09:38, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   14
Platform:   Windows ;
Language(s) :     C++ ;

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Hey everyone,

I am playing around trying to create a visual measuring line for the viewport. Ultimately I want to be able to click on a point on an object, and draw a line from the object point to any other point in space and determine the length of that line. for example, if I click on a point of a cube, then drag my mouse out to some arbitrary point in the viewport, I was to be able to determine the distance between the two points.

So to accomplish this I have been trying getting the object point, we'll call it (A) and the point where the mouse is, we'll call it (B) and then drawing a line between the two... so I say

A = WS(point);
B = Vector(x, y, 0);

bd->DrawLine(A, B, NOCLIP_Z);

then I want to get the length of the line to use it as a measurement.

So I do

Real length = Len(A - B);

the problem is I get very wrong numbers when I do this..

let's say I draw a line from one point in a cube to the other, and expect that the distance between the two points is 200. the numbers I get from my setup is like 500...

Any thoughts on what I might be doing wrong?

Thanks,

Shawn

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 06/09/2012 at 05:42, xxxxxxxx wrote:

Howdy,

It looks like you're converting to screen coordinates, but not converting back to world coordinates before calling the Len() function.

Adios,
Cactus Dan

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 06/09/2012 at 08:12, xxxxxxxx wrote:

Ah.. Thanks Dan! Should've caught that. I appreciate it!

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 12/09/2012 at 03:16, xxxxxxxx wrote:

Just in case you missed it, are you aware of Cinema's Measure & Construction tool? Seems to do the same.