Dimidiation Half-Seam Merge Coordinate Solver

Map already normalized half-armorial coordinates across a dimidiation seam; no automatic crop, charge repair or grant approval.

Description

A half-merge construction maps separately prepared left and right point sets into a shared rectangular field.

A half-merge construction maps separately prepared left and right point sets into a shared rectangular field.^[1]

Preparing the halves is separate from scaling their normalized coordinates.

When to use Dimidiation Half-Seam Merge Coordinate Solver

Use this tool to calculate or review the supplied observations under the stated rules. Establish the source tradition, viewing frame, coordinate units and independently annotated features.

How to use Dimidiation Half-Seam Merge Coordinate Solver and understand its results

Establish the source tradition, viewing frame, coordinate units and independently annotated features.
Enter viewerLeftHalfPoints, viewerRightHalfPoints, fieldWidth, fieldHeight, using the field meanings and rules below, then run the tool.
Read result.leftMappedPoints, result.rightMappedPoints, using the output meanings and calculation rules below.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
viewerLeftHalfPoints	Viewer left half points	numeric matrix	Required
viewerRightHalfPoints	Viewer right half points	numeric matrix	Required
fieldWidth	Field width	number	Required
fieldHeight	Field height	number	Required

Use positive field width/height at most 1000000000 and nonempty two-column point matrices for both halves, with coordinates in [0,1]. Map left points to [x×w/2,y×h] and right points to [(1+x)×w/2,y×h], preserving order in each half.

left(x,y)=[xw/2,yh]; right(x,y)=[(1+x)w/2,yh]

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
result	Calculated observation or reference	object
result.leftMappedPoints	left Mapped Points	list
result.rightMappedPoints	right Mapped Points	list

json

{
  "input": {
    "viewerLeftHalfPoints": [
      [
        0,
        0
      ],
      [
        1,
        1
      ]
    ],
    "viewerRightHalfPoints": [
      [
        0,
        0
      ],
      [
        1,
        1
      ]
    ],
    "fieldWidth": 100,
    "fieldHeight": 120
  },
  "output": {
    "result": {
      "leftMappedPoints": [
        [
          0,
          0
        ],
        [
          50,
          120
        ]
      ],
      "rightMappedPoints": [
        [
          50,
          0
        ],
        [
          100,
          120
        ]
      ]
    }
  }
}

Limitations and assumptions

The inputs must already represent the desired half designs. The tool scales points, not crops complete coats, preserves topology or clips a shield boundary.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above. Extremely large composite outputs are rejected.

Alternative or Complementary methods

For a related step, use Marshalling Impalement Left-Right Assigner: Heraldic dexter is the bearer's right, which appears on the viewer's left. For a complementary comparison, use Four-Quarter Charge Layout Positions Generator: A four-quarter layout divides a rectangular envelope into two rows and two columns.

References

Dimidiation Half-Seam Merge Coordinate Solver — tool.io

Similar or alternative tools

Marshalling Impalement Left-Right Assigner
Heraldic dexter is the bearer's right, which appears on the viewer's left.
Four-Quarter Charge Layout Positions Generator
A four-quarter layout divides a rectangular envelope into two rows and two columns.