@americana/maplibre-shield-generator - npm Package Compare versions

Comparing version 0.0.2 to 0.0.3-test-1

dist/index.js

@@ -1,3 +0,3 @@
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n=i.offset==null?0:i.offset,o=i.fillColor==null?"white":i.fillColor,r=i.strokeColor==null?"black":i.strokeColor,s=i.radius==null?0:i.radius,h=i.outlineWidth==null?1:i.outlineWidth,g=z(t,i,l),y=t.px(h),u=y/2,a=t.px(s),f=t.px(n),p=u,S=g-u,d=u,c=t.shieldSize()-u,w=(p+S)/2,x=d+f,m=c-f,b=a*Math.tan(Math.PI/4-Math.asin(f/(w-p))/2),T=x+b,C=m-b;return e.beginPath(),e.moveTo(w,c),e.arcTo(p,m,p,C,a),e.arcTo(p,x,w,d,a),e.lineTo(w,d),e.arcTo(S,x,S,T,a),e.arcTo(S,m,w,c,a),e.lineTo(w,c),e.closePath(),e.lineWidth=y,e.fillStyle=o,e.fill(),r!=null&&(e.strokeStyle=r,e.stroke()),g}function Rt(t,e,i,l){let 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this._emptySpriteCache||(this._emptySpriteCache=this.gfxFactory.createGraphics({width:1,height:1})),this._emptySpriteCache}px(e){return e*this.gfxFactory.pixelRatio()}shieldSize(){return this.px(this.options.shieldSize)}},ue=class{map;constructor(e){this.map=e}getSprite(e){return this.map.style.getImage(e)}putSprite(e,i,l){this.map.addImage(e,i,{pixelRatio:l})}},Z=class{_shieldPredicate=()=>!0;_networkPredicate=()=>!0;_routeParser;_renderContext;constructor(e){this._routeParser=e,this._renderContext=new se,this._renderContext.gfxFactory=new K}setShields(e){this._renderContext.options=e.options,this._renderContext.shieldDef=e.networks}debugOptions(e){return this._renderContext.debugOptions=e,this}filterImageID(e){return this._shieldPredicate=e,this}filterNetwork(e){return this._networkPredicate=e,this}graphicsFactory(e){return this._renderContext.gfxFactory=e,this}renderOnMaplibreGL(e){return this.renderOnRepository(new ue(e)),e.on("styleimagemissing",this.getStyleImageMissingHandler()),this}renderOnRepository(e){return this._renderContext.spriteRepo||(this._renderContext.spriteRepo=e),this}getStyleImageMissingHandler(){return e=>{try{if(!this._shieldPredicate(e.id))return;let i=this._routeParser.parse(e.id);if(!this._networkPredicate(i.network)){Ue(this._renderContext,e.id);return}i.spriteID=e.id,this._renderContext.debugOptions=this.debugOptions,i&&Xe(this._renderContext,i)}catch(i){console.error(`Exception while loading image \u2018${e?.id}\u2019:
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n=i.fillColor==null?"white":i.fillColor,o=i.strokeColor==null?"black":i.strokeColor,r=i.radius==null?0:i.radius,s=i.outlineWidth==null?1:i.outlineWidth,h=Y(t,"diamond"),g=z(t,i,l,"diamond"),y=t.px(s),u=y/2,a=t.px(r),f=u,p=g-u,S=u,d=h-u,c=(f+p)/2,w=(S+d)/2,x=Math.atan((c-a-f)/(d-a-w)),C=Math.sin(x),b=Math.cos(x),m=Math.tan(x/2),k=Math.tan(Math.PI/4-x/2),T=f+a*(1-b),M=c-a*b,v=c-a*k,R=c+a*k,W=c+a*b,F=p-a*(1-b),_=S+a*(1-C),B=w-a*C,P=w-a*m,H=w+a*m,G=w+a*C,O=d-a*(1-C);return e.beginPath(),e.moveTo(c,d),e.arcTo(v,d,T,G,a),e.arcTo(f,H,f,w,a),e.arcTo(f,P,M,_,a),e.arcTo(v,S,c,S,a),e.arcTo(R,S,F,B,a),e.arcTo(p,P,p,w,a),e.arcTo(p,H,W,O,a),e.arcTo(R,d,c,d,a),e.closePath(),e.lineWidth=y,e.fillStyle=n,e.fill(),o!=null&&(e.strokeStyle=o,e.stroke()),g}function vt(t,e,i,l){let n=i.pointUp==null?!0:i.pointUp,o=i.offset==null?0:i.offset,r=i.angle==null?0:i.angle,s=i.fillColor==null?"white":i.fillColor,h=i.strokeColor==null?"black":i.strokeColor,g=i.radius1==null?0:i.radius1,y=i.radius2==null?0:i.radius2,u=i.outlineWidth==null?1:i.outlineWidth,a=n?-1:1,f=Math.sin(r),p=Math.cos(r),S=Math.tan(r),d=z(t,i,l,"pentagon"),c=t.px(u),w=c/2,x=t.px(g),C=t.px(y),b=t.px(o),m=w,k=d-w,T=n?t.shieldSize()-w:w,M=n?w:t.shieldSize()-w,v=M-a*b,R=m+a*(v-T)*S,W=(m+k)/2,F=k-a*(v-T)*S,_=Math.atan(b/(W-m)),B=(Math.PI/2-_+r)/2,P=Math.tan(B),H=(Math.PI/2-r)/2,G=Math.tan(H),O=m+x*P*f,V=R+C*G,D=F-C*G,L=k-x*P*f,$=v-a*x*P*p;return e.beginPath(),e.moveTo(W,M),e.arcTo(m,v,O,$,x),e.arcTo(R,T,V,T,C),e.lineTo(D,T),e.arcTo(F,T,L,$,C),e.arcTo(k,v,W,M,x),e.closePath(),e.lineWidth=c,e.fillStyle=s,e.fill(),h!=null&&(e.strokeStyle=h,e.stroke()),d}function Mt(t,e,i,l){let n=i.offset==null?0:i.offset,o=i.fillColor==null?"white":i.fillColor,r=i.strokeColor==null?"black":i.strokeColor,s=i.radius==null?0:i.radius,h=i.outlineWidth==null?1:i.outlineWidth,g=z(t,i,l),y=t.px(h),u=y/2,a=t.px(s),f=t.px(n),p=u,S=g-u,d=u,c=t.shieldSize()-u,w=(p+S)/2,x=d+f,C=c-f,b=a*Math.tan(Math.PI/4-Math.asin(f/(w-p))/2),m=x+b,k=C-b;return e.beginPath(),e.moveTo(w,c),e.arcTo(p,C,p,k,a),e.arcTo(p,x,w,d,a),e.lineTo(w,d),e.arcTo(S,x,S,m,a),e.arcTo(S,C,w,c,a),e.lineTo(w,c),e.closePath(),e.lineWidth=y,e.fillStyle=o,e.fill(),r!=null&&(e.strokeStyle=r,e.stroke()),g}function Rt(t,e,i,l){let n=i.angle==null?0:i.angle,o=i.fillColor==null?"white":i.fillColor,r=i.strokeColor==null?"black":i.strokeColor,s=i.radius==null?0:i.radius,h=i.outlineWidth==null?1:i.outlineWidth,g=Math.sin(n),y=Math.cos(n),u=Math.tan(n),a=Math.tan(Math.PI/4-n/2),f=z(t,i,l,"hexagonHorizontal"),p=t.px(h),S=p/2,d=t.px(s),c=S,w=f-S,x=S,C=t.shieldSize()-S,b=(x+C)/2,m=x+d*a*y,k=b-d*g,T=b+d*g,M=C-d*a*y,v=c+(b-k)*u,R=c+(b-x)*u,W=w-(b-x)*u,F=w-(b-k)*u,_=R-d*a*g,B=R+d*a,P=W-d*a,H=W+d*a*g;return e.beginPath(),e.moveTo(B,x),e.arcTo(W,x,H,m,d),e.arcTo(w,b,F,T,d),e.arcTo(W,C,P,C,d),e.arcTo(R,C,_,M,d),e.arcTo(c,b,v,k,d),e.arcTo(R,x,B,x,d),e.closePath(),e.lineWidth=p,e.fillStyle=o,e.fill(),r!=null&&(e.strokeStyle=r,e.stroke()),f}function Wt(t,e,i,l){let n=i.offset==null?0:i.offset,o=i.angle==null?0:i.angle,r=i.fillColor==null?"white":i.fillColor,s=i.strokeColor==null?"black":i.strokeColor,h=i.radius==null?0:i.radius,g=i.outlineWidth==null?1:i.outlineWidth,y=Math.sin(o),u=Math.cos(o),a=Math.tan(o),f=z(t,i,l),p=t.px(g),S=p/2,d=t.px(h),c=t.px(n),w=S,x=f-S,C=S,b=t.shieldSize()-S,m=w+d*a*y,k=(w+x)/2,T=x-d*a*y,M=C+c,v=(C+b)/2,R=b-c,W=w+(v-M)*a,F=x-(v-M)*a,_=v-d*a*u,B=v+d*a*u,P=Math.atan(c/(k-W)),H=Math.sin(P),G=Math.cos(P),O=(Math.PI/2-o-P)/2,V=Math.cos(O),D=d*Math.cos(o+O)/V,L=d*Math.sin(o+O)/V,$=W+D-d*u,Ve=W+D-d*H,$e=F-D+d*H,je=F-D+d*u,Je=M+L-d*G,Qe=M+L-d*y,Ye=R-L+d*y,Ke=R-L+d*G;return e.beginPath(),e.moveTo(k,b),e.arcTo(W,R,$,Ye,d),e.arcTo(w,v,m,_,d),e.arcTo(W,M,Ve,Je,d),e.lineTo(k,C),e.arcTo(F,M,je,Qe,d),e.arcTo(x,v,T,B,d),e.arcTo(F,R,$e,Ke,d),e.lineTo(k,b),e.closePath(),e.lineWidth=p,e.fillStyle=r,e.fill(),s!=null&&(e.strokeStyle=s,e.stroke()),f}function Y(t,e){switch(e){case"diamond":return t.shieldSize()+t.px(4);default:return t.shieldSize()}}function Ae(t,e,i,l,n){return Ge[e](t,i,l,n)}var Ge={},re={};function I(t,e,i){Ge[t]=e,i!==void 0&&(re[t]=i)}I("diamond",Tt);I("ellipse",xt);I("escutcheon",bt);I("fishhead",Ct);I("hexagonVertical",Mt);I("hexagonHorizontal",Rt);I("octagonVertical",Wt);I("pentagon",vt);I("roundedRectangle",Q);I("trapezoid",mt);I("triangle",kt);Pe();function Oe(t,e,i,l){if(i==null||typeof i.banners=="undefined")return e;for(var n=0;n<i.banners.length;n++)l(t,e,i.banners[n],n);return e}function Ft(t,e,i){return{width:e.width,height:e.height+i*t.px(t.options.bannerHeight+t.options.bannerPadding)}}function ae(t){return t!==null&&t.length!==0&&t.length<=6}function de(t){return t==null||typeof t.banners=="undefined"?0:t.banners.length}function De(t,e,i){var l=null,n,o=0,r;if(Array.isArray(e.spriteBlank))for(var s=0;s<e.spriteBlank.length&&(l=t.spriteRepo.getSprite(e.spriteBlank[s]),r=Ft(t,l.data,o),n=J(t,i.ref,e,r),!(n.fontPx>t.px(q)));s++);else l=t.spriteRepo.getSprite(e.spriteBlank);return l}function Pt(t){return t!=null&&typeof t.textColor!="undefined"?t.textColor:"black"}function Le(t){return typeof t.shapeBlank!="undefined"?(e,i,l)=>Ae(e,t.shapeBlank.drawFunc,i,t.shapeBlank.params,l):He}function Bt(t,e,i,l){let o=de(i)*t.px(t.options.bannerHeight);e.save(),e.translate(0,o),Le(i)(t,e,l.ref),e.restore()}function It(t,e){return typeof e.shapeBlank!="undefined"?Y(t,e.shapeBlank.drawFunc):t.shieldSize()}function zt(t,e,i,l){var n=de(i),o=null,r=De(t,i,l);let s=n*t.px(t.options.bannerHeight);if(r==null?(e.translate(0,s),Le(i)(t,e,l.ref),e.translate(0,-s),o={width:e.canvas.width,height:It(t,i)}):o={width:r.data.width,height:r.data.height},i.notext)return e;var h=J(t,l.ref,i,o);return h.yBaseline+=n*t.px(t.options.bannerHeight),typeof t.options.SHIELD_TEXT_HALO_COLOR_OVERRIDE!="undefined"?(e.strokeStyle=options.SHIELD_TEXT_HALO_COLOR_OVERRIDE,ne(t,e,l.ref,h)):i.textHaloColor&&(e.strokeStyle=i.textHaloColor,ne(t,e,l.ref,h)),e.fillStyle=Pt(i),me(t,e,l.ref,h),t.options.SHIELD_TEXT_BBOX_COLOR&&(e.strokeStyle=t.options.SHIELD_TEXT_BBOX_COLOR,e.lineWidth=t.px(1),e.strokeRect(t.px(i.padding.left-.5),n*t.px(t.options.bannerHeight)+t.px(i.padding.top-.5),o.width-t.px(i.padding.left+i.padding.right-1),o.height-t.px(i.padding.top+i.padding.bottom-1))),e}function Ee(t,e){let i=he(t,e);i==null&&(console.warn("Didn't produce a shield for",JSON.stringify(e)),i=t.gfxFactory.createGraphics({width:1,height:1})),Xe(t,e.spriteID,i)}function Xe(t,e,i){let l=i.getImageData(0,0,i.canvas.width,i.canvas.height);t.spriteRepo.putSprite(e,{width:i.canvas.width,height:i.canvas.height,data:l.data},t.px(1))}function Ne(t,e){Xe(t,e,t.emptySprite())}function Ue(t,e){return e.refsByName&&t.name&&e.refsByName[t.name]?e.refsByName[t.name]:t.ref}function _t(t,e){var i=t[e.network];if(e==null)return null;if(i==null)return console.debug("Generic shield for",JSON.stringify(e)),ae(e.ref)?t.default:null;var l=Ue(e,i);return i.overrideByRef&&(i={...i,...i.overrideByRef[l]}),i.overrideByName&&(i={...i,...i.overrideByName[e.name||""]}),!ae(l)&&"noref"in i&&(i=i.noref,i.notext=!0),!ae(l)&&!i.notext&&!(i.refsByName&&e.name)?null:i}function Ht(t){let e=parseInt(t,10);if(isNaN(e))return t;let i="M".repeat(e/1e3)+"D".repeat(e%1e3/500)+"C".repeat(e%500/100)+"L".repeat(e%100/50)+"X".repeat(e%50/10)+"V".repeat(e%10/5)+"I".repeat(e%5);return i=i.replace("DCCCC","CM").replace("CCCC","CD").replace("LXXXX","XC").replace("XXXX","XL").replace("VIIII","IX").replace("IIII","IV"),i+t.slice(e.toString().length)}function At(t,e,i){let l=Math.max(t.shieldSize(),z(t,e.shapeBlank.params,i,e.shapeBlank.drawFunc)),n=Y(t,e.shapeBlank.drawFunc);return{width:l,height:n}}function he(t,e){let 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this._emptySpriteCache||(this._emptySpriteCache=this.gfxFactory.createGraphics({width:1,height:1})),this._emptySpriteCache}px(e){return e*this.gfxFactory.pixelRatio()}shieldSize(){return this.px(this.options.shieldSize)}},ue=class{constructor(e){this.map=e}getSprite(e){return this.map.style.getImage(e)}putSprite(e,i,l){this.map.addImage(e,i,{pixelRatio:l})}},Z=class{constructor(e){this._shieldPredicate=()=>!0;this._networkPredicate=()=>!0;this._shieldDefCallbacks=[];this._routeParser=e,this._renderContext=new se,this._renderContext.gfxFactory=new K}setShields(e){this._renderContext.options=e.options,this._renderContext.shieldDef=e.networks,this._shieldDefCallbacks.forEach(i=>i(e.networks))}getShieldDefinitions(){return this._renderContext.shieldDef}debugOptions(e){return this._renderContext.debugOptions=e,this}filterImageID(e){return this._shieldPredicate=e,this}filterNetwork(e){return this._networkPredicate=e,this}graphicsFactory(e){return this._renderContext.gfxFactory=e,this}renderOnMaplibreGL(e){return this.renderOnRepository(new ue(e)),e.on("styleimagemissing",this.getStyleImageMissingHandler()),this}onShieldDefLoad(e){return this._renderContext.shieldDef?e(this._renderContext.shieldDef):this._shieldDefCallbacks.push(e),this}renderOnRepository(e){return this._renderContext.spriteRepo||(this._renderContext.spriteRepo=e),this}getStyleImageMissingHandler(){return e=>{try{if(!this._shieldPredicate(e.id))return;let i=this._routeParser.parse(e.id);if(!this._networkPredicate(i.network)){Ne(this._renderContext,e.id);return}i.spriteID=e.id,this._renderContext.debugOptions=this.debugOptions,i&&Ee(this._renderContext,i)}catch(i){console.error(`Exception while loading image \u2018${e==null?void 0:e.id}\u2019:
+`,i)}}}getGraphicForRoute(e,i,l){return he(this._renderContext,{network:e,ref:i,name:l,spriteID:this._routeParser.format(e,i,l)})}emptySprite(){return this._renderContext.emptySprite()}createGraphics(e){return this._renderContext.gfxFactory.createGraphics(e)}pixelRatio(){return this._renderContext.px(1)}},fe=class extends Z{constructor(e,i){super(i),this.setShields(e)}},pe=class extends Z{constructor(e,i){super(i),this.setShieldURL(e)}async setShieldURL(e){await fetch(e).then(i=>i.json()).then(i=>super.setShields(i)).catch(i=>console.error(i))}},ee=class{constructor(){this.sprites={}}getSprite(e){return this.sprites[e]}hasSprite(e){return e in this.sprites}putSprite(e,i){this.sprites[e]=i}},ei=new ee;export{ee as InMemorySpriteRepository,fe as ShieldRenderer,pe as URLShieldRenderer,qe as getDOMPixelRatio,le as transposeImageData};
 //# sourceMappingURL=index.js.map

package.json

 {
   "name": "@americana/maplibre-shield-generator",
   "description": "Generate highway shields for maplibre-gl-js maps",
-  "version": "0.0.2",
+  "version": "0.0.3-test-1",
   "author": "OpenStreetMap Americana Contributors",
@@ -18,3 +18,8 @@ "type": "module",
   "license": "CC0-1.0",
-  "main": "dist/index.js",
+  "main": "dist/maplibre-shield-generator-cjs.js",
+  "module": "dist/maplibre-shield-generator-esm.js",
+  "browser": {
+    "dist/maplibre-shield-generator-cjs.js": "dist/maplibre-shield-generator.js",
+    "dist/maplibre-shield-generator-esm.js": "dist/maplibre-shield-generator-esm.js"
+  },
   "source": "src/index.ts",
@@ -53,2 +58,5 @@ "devDependencies": {
   },
+  "files": [
+    "dist/*"
+  ],
   "directories": {
@@ -55,0 +63,0 @@ "test": "test"

README.md

@@ -7,5 +7,5 @@ # Americana Shield Renderer
 
-## Shield rendering workflow
+## Usage
 
-Rendering shields requires the following compoments:
+Rendering shields requires the following components:
 
@@ -16,4 +16,10 @@ 1. **Encode shield information in vector tiles**. First, your tiles must contain the information which tells the shield renderer what shields to draw. In OpenMapTiles, shield information is encoded in the [`transportation_name`](https://openmaptiles.org/schema/#transportation_name) vector tile layer with a series of attributes named `route_1`, `route_2`, etc. Each attribute contains a text string which contains all of the information needed to determine which graphic to display, including numeric route number if the shield is numbered. However, this library allows you to specify how the shield information has been encoded, and it's possible to stitch together data from multiple fields when encoding shield data.
 
-3. **Define a parser that describes how route information is encoded**. There are three parts to a route definition:
+3. Import the library:
+   
+   ```html
+   <script type="text/javascript" src="maplibre-shield-generator.js"></script>
+   ```
 
+4. **Define a parser that describes how route information is encoded**. There are three parts to a route definition:
+
    1. The `network` string, which defines a network with a common shield shape, graphic, and color
@@ -41,3 +47,3 @@ 1. The `ref` string, which defines a text sequence that should be drawn on top of the shield graphic
 
-4. **(Optional) Create predicates that define which shields will be handled**. For example, if all sprite IDs in your style that need a shield begin with the string `shield|`, this would look like:
+5. **(Optional) Create predicates that define which shields will be handled**. For example, if all sprite IDs in your style that need a shield begin with the string `shield|`, this would look like:
 
@@ -57,8 +63,8 @@ ```typescript
 
-5. **Create shield definitions and artwork**. The shield definition is expressed as a JSON file along with a set of sprites containing any raster artwork used for the shields. It can be generated as an object or hosted as a JSON file accessible by URL. See the next section for how to create this definition.
+6. **Create shield definitions and artwork**. The shield definition is expressed as a JSON file along with a set of sprites containing any raster artwork used for the shields. It can be generated as an object or hosted as a JSON file accessible by URL. See the next section for how to create this definition.
 
-6. **Hook up the shield generator to a maplibre-gl-js map**. Pass either the URL of the JSON shield definition or create an object in javascript code. There are two separate classes for each approach.
+7. **Hook up the shield generator to a maplibre-gl-js map**. Pass either the URL of the JSON shield definition or create an object in javascript code. There are two separate classes for each approach.
 
    ```typescript
-   new URLShieldRenderer("shields.json", routeParser)
+   new mapLibreShieldGenerator.URLShieldRenderer("shields.json", routeParser)
      .filterImageID(shieldPredicate)
@@ -70,3 +76,3 @@ .filterNetwork(networkPredicate)
    ```typescript
-   new ShieldRenderer(shields, routeParser)
+   new mapLibreShieldGenerator.ShieldRenderer(shields, routeParser)
      .filterImageID(shieldPredicate)
@@ -77,3 +83,3 @@ .filterNetwork(networkPredicate)
 
-## Shield Definition
+## Shield definition
 
@@ -80,0 +86,0 @@ The purpose of the shield definition is to define which graphics and text to draw for each network/ref/name combination that you wish to display. This can be created in javascript as an object, or as an HTTP-accessible JSON file.

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