awv3/plugins/sketcher/constraint/type.js

⚡ AWV3 embedded CAD

function point(ccref) {
    return ccref.isPoint();
}
function line(ccref) {
    return ccref.isLine();
}
function arc(ccref) {
    return ccref.isArc() || ccref.isCircle();
}
function curve(ccref) {
    return line(ccref) || arc(ccref);
}
function any(ccref) {
    return point(ccref) || curve(ccref);
}
function f(type, predicates, desc) {
    const isLenient = desc.includes('l'); // allow selecting a line instead of its two endpoints
    const isStrictlyLenient = desc.includes('L'); // must select lines instead of endpoints
    return {
        type,
        isParametric: desc.includes('p'),
        isCommutative: desc.includes('c'),
        adapt(entities) {
            entities = [...entities];
            for (let i = 0; i < entities.length; ++i)
                if (isLenient && entities[i].isLine() && entities.length < predicates.length)
                    entities.splice(i, 1, ...entities[i].children);
            if (entities.length !== predicates.length || !entities.every((entity, i) => predicates[i](entity)))
                return null;
            for (let i = 0; i < entities.length; ++i)
                if (isStrictlyLenient && entities[i].isLine()) entities.splice(i, 1, ...entities[i].children);
            return entities;
        },
    };
}

export const angle = f('CC_2DAngleConstraint', [line, line], 'pc');
export const angleox = f('CC_2DAngleOXConstraint', [line], 'p');
export const colinear = f('CC_2DColinearConstraint', [line, line], 'c');
export const concentric = f('CC_2DConcentricConstraint', [arc, arc], 'c');
export const distance = f('CC_2DOffsetConstraint', [any, any], 'pcl');
export const equalDistance = f('CC_2DEqualLengthConstraint', [line, line], 'L');
export const equalRadius = f('CC_2DEqualRadiusConstraint', [arc, arc], 'c');
export const fixation = f('CC_2DFixationConstraint', [any], '');
export const horizontalDistance = f('CC_2DHorizontalDistanceConstraint', [point, point], 'pl');
export const horizontality = f('CC_2DHorizontalConstraint', [line], '');
export const incidence = f('CC_2DCoincidentConstraint', [any, any], 'c');
export const midpoint = f('CC_2DMidpointConstraint', [any, point, any], '');
export const parallelity = f('CC_2DParallelConstraint', [line, line], 'c');
export const perpendicularity = f('CC_2DPerpendicularConstraint', [line, line], 'c');
export const radius = f('CC_2DRadiusConstraint', [arc], 'p');
export const diameter = f('CC_2DDiameterConstraint', [arc], 'p');
export const symmetric = f('CC_2DSymmetryConstraint', [line, any, any], '');
export const tangency = f('CC_2DTangentSketchConstraint', [curve, curve], 'c');
export const verticalDistance = f('CC_2DVerticalDistanceConstraint', [point, point], 'pl');
export const verticality = f('CC_2DVerticalConstraint', [line], '');