@allmaps/transform/dist/shared/transform-functions.js

Coordinate transformation functions

import { mergeOptions } from '@allmaps/stdlib';
import { defaultRefinementOptions } from './refinement-functions.js';
// Options
export const nonWarpingTransformationTypes = [
    'helmert',
    'polynomial',
    'polynomial1'
];
export const defaultGeneralGcpTransformOptions = {
    maxDepth: 0,
    minSourceDistance: 0,
    minDestinationDistance: 0,
    minOffsetRatio: 0,
    minOffsetDistance: Infinity,
    isMultiGeometry: false,
    distortionMeasures: [],
    referenceScale: 1,
    preForward: (point) => point,
    postForward: (point) => point,
    preBackward: (point) => point,
    postBackward: (point) => point
};
export const defaultGeneralGcpTransformerOptions = {
    differentHandedness: false,
    ...defaultGeneralGcpTransformOptions
};
export function gcpTransformOptionsToGeneralGcpTransformOptions(partialGcpTransformOptions) {
    if (partialGcpTransformOptions === undefined ||
        Object.keys(partialGcpTransformOptions).length === 0) {
        return {};
    }
    const partialGeneralGcpTransformOptions = partialGcpTransformOptions;
    if (partialGcpTransformOptions.postToGeo) {
        partialGeneralGcpTransformOptions.postForward =
            partialGcpTransformOptions.postToGeo;
    }
    if (partialGcpTransformOptions.preToResource) {
        partialGeneralGcpTransformOptions.preBackward =
            partialGcpTransformOptions.preToResource;
    }
    return partialGeneralGcpTransformOptions;
}
export function gcpTransformerOptionsToGeneralGcpTransformerOptions(partialGcpTransformerOptions) {
    if (partialGcpTransformerOptions === undefined) {
        return {};
    }
    // Note: None of the transformer options need to be adapted
    // only the transform options that could be included in them
    const partialGeneralGcpTransformerOptions = gcpTransformOptionsToGeneralGcpTransformOptions(partialGcpTransformerOptions);
    return partialGeneralGcpTransformerOptions;
}
export function generalGcpTransformOptionsToGcpTransformOptions(partialGeneralGcpTransformOptions) {
    if (partialGeneralGcpTransformOptions === undefined) {
        return {};
    }
    const partialGcpTransformOptions = partialGeneralGcpTransformOptions;
    if (partialGeneralGcpTransformOptions.postForward) {
        partialGcpTransformOptions.postToGeo =
            partialGeneralGcpTransformOptions.postForward;
    }
    if (partialGeneralGcpTransformOptions.preBackward) {
        partialGcpTransformOptions.preToResource =
            partialGeneralGcpTransformOptions.preBackward;
    }
    return partialGcpTransformOptions;
}
export function generalGcpTransformerOptionsToGcpTransformerOptions(partialGeneralGcpTransformerOptions) {
    if (partialGeneralGcpTransformerOptions == undefined) {
        return {};
    }
    const partialGcpTransformerOptions = partialGeneralGcpTransformerOptions;
    return partialGcpTransformerOptions;
}
export const defaultGcpTransformOptions = generalGcpTransformOptionsToGcpTransformOptions(defaultGeneralGcpTransformOptions);
export const defaultGcpTransformerOptions = generalGcpTransformerOptionsToGcpTransformerOptions(defaultGeneralGcpTransformerOptions);
export function refinementOptionsFromForwardTransformOptions(generalGcpTransformOptions) {
    const refinementOptions = mergeOptions(defaultRefinementOptions, generalGcpTransformOptions);
    return refinementOptions;
}
export function refinementOptionsFromBackwardTransformOptions(generalGcpTransformOptions) {
    const refinementOptions = mergeOptions(defaultRefinementOptions, generalGcpTransformOptions);
    return refinementOptions;
}