fix(ui): вписывать топологию в область карты

lib/network-map-camera.test.ts

@@ -0,0 +1,5 @@
+import {test} from "node:test"
+import assert from "node:assert/strict"
+import {fitNetworkMapCamera} from "./network-map-camera"
+test("camera fits off-world nodes and labels across aspect ratios",()=>{for(const h of [580,1600]){const points=[{x:-200,y:50},{x:1000,y:700}],c=fitNetworkMapCamera(points,1240,h);for(const p of points){assert.ok(p.x>=c.pan.x+119);assert.ok(p.x<=c.pan.x+1240/c.zoom-119);assert.ok(p.y>=c.pan.y+99);assert.ok(p.y<=c.pan.y+h/c.zoom-99)}}})
+test("empty/invalid positions and maximum initial zoom",()=>{assert.deepEqual(fitNetworkMapCamera([],1240,580),{pan:{x:0,y:0},zoom:1});assert.deepEqual(fitNetworkMapCamera([{x:NaN,y:1}],1240,580),{pan:{x:0,y:0},zoom:1});assert.equal(fitNetworkMapCamera([{x:1,y:1}],1240,1600).zoom,3)})

lib/network-map-camera.ts

@@ -0,0 +1,8 @@
+export interface MapPoint {x:number;y:number}
+export function fitNetworkMapCamera(points:readonly MapPoint[],width:number,height:number) {
+ const valid=points.filter(p=>Number.isFinite(p.x)&&Number.isFinite(p.y))
+ if(!valid.length||width<=0||height<=0)return {pan:{x:0,y:0},zoom:1}
+ const xs=valid.map(p=>p.x),ys=valid.map(p=>p.y),left=Math.min(...xs)-120,right=Math.max(...xs)+120,top=Math.min(...ys)-100,bottom=Math.max(...ys)+100
+ const zoom=Math.max(.2,Math.min(3,width/(right-left),height/(bottom-top)))
+ return {pan:{x:(left+right)/2-width/(2*zoom),y:(top+bottom)/2-height/(2*zoom)},zoom}
+}