Error when calling opSplitPart, CANNOT_RESOLVE_ENTITIES

Lee_Hesketh · March 2017

Hello all, yet again I have another error, but in a different script this time. I am creating a script that splits a part into laminations, for use when creating counter tops out of many boards for example. I am using a for loop with the variable i to do this.

The user selects the face which they want the board length to be and an edge for the direction. Then they specify the number of boards they want. I then use the edge to get the width and divide that by the number of boards. Then I create a construction plane such that its origin is offset by the thickness of each board. I am doing this in the for loop, so on each iteration, the plane offsets another thickness each time.

Then the error... I am using opSplitPart() with the target as qOwnerBody(face) and the tool as the construction plane. However, I have an error of CANNOT_RESOLVE_ENTITIES. What am I doing wrong?
https://cad.onshape.com/documents/58d26491dbd4820fd5e392c8/v/d8e57c57dc9ea9c3ec23e7cf/e/3f67a0bdb932d66d53e4aa1c

Thanks
Lee Hesketh

leon_poot · March 2017

You'll need to query the plane for "tool", not the variable.

opSplitPart(context, id + "splitPart1", {
                    "targets" : qEntityFilter(qOwnerBody(face),EntityType.BODY),
                    "tool" : qCreatedBy(id + "plane1", EntityType.BODY)
            });

No clue why it needs EntityType.BODY, but replacing it with anything else fails.

leon_poot · March 2017

This would my for-loop:

for (var i = 1; i < numLam; i += 1)
{
    var splitPlane = opPlane(context, id + ("plane" ~ i), {
            "plane" : plane(tanPlane.origin + vector(i * lamWidth * millimeter, i * lamWidth * millimeter, 0 * meter), tanPlane.normal * -1, tanPlane.x),
            "width" : 6 * inch,
            "height" : 6 * inch
        });

    var targets;
    if (i == 1)
    {
        targets = qEntityFilter(qOwnerBody(face), EntityType.BODY);
    }
    else
    {
        targets = qSplitBy(id + ("splitPart" ~ (i - 1)), EntityType.BODY, false);
    }
    var tool = qCreatedBy(id + ("plane" ~ i), EntityType.BODY);

    opSplitPart(context, id + ("splitPart" ~ i), {
                "targets" : targets,
                "tool" : tool
            });
            
}

I saw in your document that you called opSplitPart twice, you only need it once per loop.

leon_poot · March 2017

You'll need to query the plane for "tool", not the variable.

opSplitPart(context, id + "splitPart1", {
                    "targets" : qEntityFilter(qOwnerBody(face),EntityType.BODY),
                    "tool" : qCreatedBy(id + "plane1", EntityType.BODY)
            });

No clue why it needs EntityType.BODY, but replacing it with anything else fails.

Lee_Hesketh · March 2017

Thank you so much!

Lee_Hesketh · March 2017

Now, for some reason it only splits once. Any ideas?

leon_poot · March 2017

I was wondering the same thing. I found a trick: qSplitBy(featureId is Id, entityType, backBody is boolean), and then all you need to do is loop through the planes and newly-split bodies.

So you'd end up with something like this inside your for-loop:

var targets;
if (i == 1)
{
    targets = qEntityFilter(qOwnerBody(face), EntityType.BODY);
}
else
{
    targets = qSplitBy(id + ("splitPart" ~ (i - 1)), EntityType.BODY, false);
}
var tool = qCreatedBy(id + ("plane" ~ i), EntityType.BODY);

opSplitPart(context, id + ("splitPart" ~ i), {
            "targets" : targets,
            "tool" : tool
        });

Hope that helps.

Lee_Hesketh · March 2017

So what would the whole for loop look like?

leon_poot · March 2017

This would my for-loop:

for (var i = 1; i < numLam; i += 1)
{
    var splitPlane = opPlane(context, id + ("plane" ~ i), {
            "plane" : plane(tanPlane.origin + vector(i * lamWidth * millimeter, i * lamWidth * millimeter, 0 * meter), tanPlane.normal * -1, tanPlane.x),
            "width" : 6 * inch,
            "height" : 6 * inch
        });

    var targets;
    if (i == 1)
    {
        targets = qEntityFilter(qOwnerBody(face), EntityType.BODY);
    }
    else
    {
        targets = qSplitBy(id + ("splitPart" ~ (i - 1)), EntityType.BODY, false);
    }
    var tool = qCreatedBy(id + ("plane" ~ i), EntityType.BODY);

    opSplitPart(context, id + ("splitPart" ~ i), {
                "targets" : targets,
                "tool" : tool
            });
            
}

I saw in your document that you called opSplitPart twice, you only need it once per loop.

Lee_Hesketh · March 2017

I am now getting a duplicate error

Lee_Hesketh · March 2017

Now it works for some reason. Thanks!

Error when calling opSplitPart, CANNOT_RESOLVE_ENTITIES

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