feat(#153): static_scale option to disable dynamic scaling

README.md

@@ -36,6 +36,7 @@ This card is intended to display connections between entities with numeric state
 | min_box_distance | number | **Optional** | 5 | Minimum space between entity boxes
 | min_state | number | **Optional** | >0 | Any entity below this value will not be displayed. Only positive numbers above 0 are allowed. The default is to show everything above 0.
 | throttle | number | **Optional** | | Minimum time in ms between updates/rerenders
+| static_scale | number | **Optional** | | State value corresponding to the maximum height size of the card. For example, if this is set to 1000, then a box with state 500 will take up half of its section. If some section exceeds the value of `static_scale`, the card will dynamically rescale overriding this option. See (#153)
 
 ### Sections object
 

src/chart.ts

@@ -252,6 +252,14 @@ export class Chart extends LitElement {
 
  private _calcBoxes() {
  this.statePerPixelY = 0;
+ if (this.config.static_scale) {
+ // use static scale to set a minimum statePerPixelY
+ this._calcBoxHeights(
+ [{ state: this.config.static_scale, size: 0 } as Box],
+ this.config.height,
+ this.config.static_scale,
+ );
+ }
  const filteredConfig = filterConfigByZoomEntity(this.config, this.zoomEntity);
  const sectionsStates: SectionState[] = [];
  filteredConfig.sections.forEach(section => {

src/editor/index.ts

@@ -184,6 +184,7 @@ export class SankeyChartEditor extends LitElement implements LovelaceCardEditor
  name: '',
  schema: [
  { name: 'min_state', selector: { number: { mode: 'box' } } },
+ { name: 'static_scale', selector: { number: { mode: 'box' } } },
  { name: 'round', selector: { number: { mode: 'box', unit_of_measurement: localize('editor.decimals') } } },
  { name: 'throttle', selector: { number: { mode: 'box', unit_of_measurement: 'ms' } } },
  {

src/localize/languages/en.json

@@ -30,6 +30,7 @@
  "min_box_height": "Min box height",
  "min_box_distance": "Min box distance",
  "min_state": "Min state",
+ "static_scale": "Static scale",
  "round": "Round",
  "throttle": "Throttle",
  "unit_prefix": "Unit prefix",

src/types.ts

@@ -116,6 +116,7 @@ export interface SankeyChartConfig extends LovelaceCardConfig {
  min_box_distance?: number;
  throttle?: number;
  min_state?: number;
+ static_scale?: number;
 }
 
 export interface Section {