vex How to adjust the width of a point multiple times

[kenneth0322]

Hi. I am a beginner.
I understand myself that this is a stupid question, but I'm getting confused, so can someone please help me?

I have created a point using the addpoint function. I would like to change the interval of it multiple times, what should I do?
For example, I want 1~23 points to be spaced 1 meter apart, 24~86 points to be spaced 2.5 meters apart, 87~123 points to be spaced 5 meters apart, and so on. And those points are in a straight line.
If anyone can help me with this, please let me know.

Sorry if my English is bad.　Thanks.

[flcc]

Some for loop ?

[konstantin magnus]

Hi Ken,

set up a line with zero length, initialize transforms using rig doctor, and shift point positions in a rig wrangle:

int class = 0;
class += i@ptnum > 23;
class += i@ptnum > 87;

float spacing[] = array(1.0, 2.5, 5.0);
pretranslate(4@localtransform, set(0.0, 0.0, spacing[class]));

 

spacing_dots.hiplc

[flcc]

class += i@ptnum > 23;
class += i@ptnum > 87;

I like these two lines
I have to remember the trick
I've just converted the rig wrangle into a classic detail wrangle. May be more "classical" way.

@konstantin magnus
by the way, why do you use pretransform rather than transform (who seam to also work) ?

Classical vex way.hiplc

Edited January 15, 2022 by flcc

[kenneth0322]

I'm sorry for the late reply.
Thank you very much for the scene file!
Thanks to you, the problem has been solved!
Thank you very much, both of you!

Edited January 16, 2022 by kenneth0322

[raincole]

On 1/15/2022 at 12:16 PM, flcc said:

 

@konstantin magnus
by the way, why do you use pretransform rather than transform (who seam to also work) ?

 

In this particular case, pretransform and transform are identical, because there is no other kind of transform than translate.

[konstantin magnus]

Ok, then maybe this allows for testing a bit more:

int partition[] = array(12, 38);
float spacing[] = array(1.5, 2.5, 5.0);
float rotation[] = array(-3, 2, 18);

int class = 0;
foreach(int part; partition){
    class += i@ptnum > part;
}

translate(4@localtransform, set(0.0, 0.0, spacing[class]));
rotate(4@localtransform, radians(rotation[class]), {1,0,0});
i@class = class;

 

spacing_roating_dots.hiplc

[konstantin magnus]

An example on curling multiple curves:

curling_curves.hiplc