How Do I Subtract a Number from My Variable

3966_cad

I am trying to iterate an skCircle to space them out evenly, but I keep on running into an error: 
"Can not subtract ValueWithUnits (map) and number"

        for (var i = 0 * inch; i < definition.length; i += 1)
        {
            var iss = i - 0.5;
            skCircle(sketch2, "circle" ~ i, {
                        "center" : vector((iss), 0.5 * inch),
                        "radius" : 0.6299 * inch
                    });
        }

Here is the link to the full file.
I know what the error means, but I can't figure out how to make it work. 
I would appreciate any help you can offer me.

lana

In expression var iss = i - 0.5; i is a ValueWithUnits , namely length. The value you subtract from it also has to be length : 

var iss = i - 0.5 * inch<span>; would fix the the error. </span>

Jake_Rosenfeld

You are going to run into similar issues with:

i += 1

and 

</code>skCircle(sketch2, "circle" ~ i, {...</pre>The first is the same issue as you posed about (adding a number and a ValueWithUnits) and the second if that the Featurescript interpreter won't be happy with using a ValueWithUnits in an Id string. &nbsp;You can fix these issues by using:<br><pre class="CodeBlock"><code>i += 1 * inch

and 

skCircle(sketch2, "circle" ~ (i / inch), {...

respecively.

3966_cad

Thanks! I was just about to ask that.

3966_cad

OK. So I did that and I got another error that my qContainsPoint wasn't resolving to anything. Any tips on this?

3966_cad

Still need help by the way

ilya_baran

I would guess the issue is that qSketchRegion(id + "sketch2") may not be selecting what you expect (try passing that into debug) and instead you should use qCreatedBy(id + "sketch2", EntityType.FACE)

3966_cad

Got it.