Rule Operation Merge

Name	Type	Description
キャンバス1 canvas_a	RuleCanvas Required	結合するルールキャンバスです。
キャンバス2 canvas_b	RuleCanvas	結合するルールキャンバスです。
キャンバス3 canvas_c	RuleCanvas	結合するルールキャンバスです。
キャンバス4 canvas_d	RuleCanvas	結合するルールキャンバスです。

Name	Type	Description
ルールキャンバス canvas	RuleCanvas	結合したキャンバスです。
警告 warnings	Text	マップサイズ不一致などの注意点です。
概要 summary	Text	結合結果の短いまとめです。

Overview

Layers multiple rule canvases into one, combining hand painting with parametric placements from rule_rect, rule_polyline, and similar nodes. This enables a layered workflow such as painting base terrain by hand and placing buildings with rectangle nodes.

Usage tips

Later inputs appear on top. Put the base terrain in canvas_a, then overlays in b, c, and so on.
Keeping parametric placement (rect / polyline / path) in separate nodes lets you move size and position with sliders without damaging the painted canvas.
Check the warnings output at least once to catch dimension mismatches.

Related nodes

rule_rect / rule_polyline / rule_path — supply parametric placements
rule_canvas — supplies the hand-painted canvas
rule_render — renders the combined result

What this node does

Combines parametric operations made with Rule Rect and Rule Polyline with a canvas painted in the editor. Operations are layered by input order, then by order within each canvas; later inputs appear on top. Non-empty hand-painted cells overwrite earlier cells.

For a canvas whose map dimensions differ from the first input, hand-painted cells are skipped while operations are still combined. A warning reports the mismatch. Operation coordinates remain valid because they are absolute.

Inputs and outputs

Kind	ID	Type	Description
Input	`canvas_a`–`canvas_d`	RuleCanvas (only a is required)	Canvases to combine.
Output	`canvas`	RuleCanvas	Combined result.
Output	`warnings` / `summary`	Text	Dimension mismatches and a summary.

Example wiring

Hand-painted RuleCanvas.canvas ──→ RuleOperationMerge.canvas_a
RuleRect.canvas                ──→ RuleOperationMerge.canvas_b
RuleOperationMerge.canvas      ──→ RuleRender.canvas

Input Ports

Output Ports