How to using FS to create a quick sphere

tsung_ren_hung

I tried using FS to quickly create a sphere
but it still not work.
where is the problem?

thanks

https://cad.onshape.com/documents/578f89d3e4b0cdd13940cfe7/w/92807c44d555c353a9b7b4b3/e/d9b77e1c239e6135100324f8

NeilCooke

Sorry, the documentation is wrong - center should be a query not a length vector. 

annotation { "Feature Type Name" : "Quick Sphere" }
export const quickSphere = defineFeature(function(context is Context, id is Id, definition is map)
    precondition
    {
        annotation { "Name" : "Select sphere center", "Filter" : EntityType.VERTEX, "MaxNumberOfPicks" : 1 }
        definition.center is Query;
        
        annotation { "Name" : "Sphere size" }
        isLength(definition.sphereSize, LENGTH_BOUNDS);
    }
    {
     
        sphere(context, id + "sphere1", {
                "center" : definition.center,
                "radius" : definition.sphereSize / 2
        });
    });

If you need to specify a vector, please use fEllipsoid:

    fEllipsoid(context, id + "sphere", {
            "center" : vector(0, 0, 0) * inch,
            "radius" : vector(definition.sphereSize / 2, definition.sphereSize / 2, definition.sphereSize / 2)
    });

tsung_ren_hung

thank you NeilCooke
I have no any programming experience, your answer makes sense to me.
FS is a bit difficult for me.
I will make very effort to learn FS.

NeilCooke

Sorry, the documentation is wrong - center should be a query not a length vector. 

annotation { "Feature Type Name" : "Quick Sphere" }
export const quickSphere = defineFeature(function(context is Context, id is Id, definition is map)
    precondition
    {
        annotation { "Name" : "Select sphere center", "Filter" : EntityType.VERTEX, "MaxNumberOfPicks" : 1 }
        definition.center is Query;
        
        annotation { "Name" : "Sphere size" }
        isLength(definition.sphereSize, LENGTH_BOUNDS);
    }
    {
     
        sphere(context, id + "sphere1", {
                "center" : definition.center,
                "radius" : definition.sphereSize / 2
        });
    });

If you need to specify a vector, please use fEllipsoid:

    fEllipsoid(context, id + "sphere", {
            "center" : vector(0, 0, 0) * inch,
            "radius" : vector(definition.sphereSize / 2, definition.sphereSize / 2, definition.sphereSize / 2)
    });

tsung_ren_hung

thank you NeilCooke
I have no any programming experience, your answer makes sense to me.
FS is a bit difficult for me.
I will make very effort to learn FS.