* Update state and trigger a re-render * @param {Object} state - State updates to apply
(state)
| 368 | * @param {Object} state - State updates to apply |
| 369 | */ |
| 370 | function update(state) { |
| 371 | // Update state from provided values |
| 372 | if (state.phi != UNDEFINED) phi = state.phi |
| 373 | if (state.theta != UNDEFINED) theta = state.theta |
| 374 | if (state.markers) updateMarkers(state.markers) |
| 375 | if (state.arcs) updateArcs(state.arcs) |
| 376 | |
| 377 | if (state.width && state.height) { |
| 378 | canvas.width = state.width * dpr |
| 379 | canvas.height = state.height * dpr |
| 380 | } |
| 381 | |
| 382 | // Update appearance options |
| 383 | if (state.mapSamples != UNDEFINED) mapSamples = state.mapSamples |
| 384 | if (state.mapBrightness != UNDEFINED) mapBrightness = state.mapBrightness |
| 385 | if (state.mapBaseBrightness != UNDEFINED) |
| 386 | mapBaseBrightness = state.mapBaseBrightness |
| 387 | if (state.baseColor != UNDEFINED) baseColor = state.baseColor |
| 388 | if (state.markerColor != UNDEFINED) markerColor = state.markerColor |
| 389 | if (state.glowColor != UNDEFINED) glowColor = state.glowColor |
| 390 | if (state.arcColor != UNDEFINED) arcColor = state.arcColor |
| 391 | if (state.arcWidth != UNDEFINED) arcWidth = state.arcWidth |
| 392 | if (state.arcHeight != UNDEFINED) arcHeight = state.arcHeight |
| 393 | if (state.diffuse != UNDEFINED) diffuse = state.diffuse |
| 394 | if (state.dark != UNDEFINED) dark = state.dark |
| 395 | if (state.opacity != UNDEFINED) opacity = state.opacity |
| 396 | if (state.offset != UNDEFINED) offsetOpt = state.offset |
| 397 | if (state.scale != UNDEFINED) scaleOpt = state.scale |
| 398 | if (state.markerElevation != UNDEFINED) |
| 399 | markerElevation = state.markerElevation |
| 400 | |
| 401 | // Update anchor positions |
| 402 | anchorManager.m(markers, project) |
| 403 | anchorManager.a(arcs, projectArcMidpoint) |
| 404 | anchorManager.s() |
| 405 | |
| 406 | // Set viewport |
| 407 | gl.viewport(0, 0, canvas.width, canvas.height) |
| 408 | gl.clearColor(0, 0, 0, 0) |
| 409 | gl.clear(gl.COLOR_BUFFER_BIT) |
| 410 | |
| 411 | // Enable blending for transparency |
| 412 | gl.enable(gl.BLEND) |
| 413 | gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA) |
| 414 | |
| 415 | // === Pass 1: Globe === |
| 416 | gl.useProgram(globeProgram) |
| 417 | |
| 418 | // Bind quad buffer |
| 419 | gl.bindBuffer(gl.ARRAY_BUFFER, quadBuffer) |
| 420 | gl.enableVertexAttribArray(globePositionAttrib) |
| 421 | gl.vertexAttribPointer(globePositionAttrib, 2, gl.FLOAT, false, 0, 0) |
| 422 | // Reset divisor to 0 for non-instanced draw (may have been set by previous frame's instanced draws) |
| 423 | if (webgl2) { |
| 424 | gl.vertexAttribDivisor(globePositionAttrib, 0) |
| 425 | } else if (instExt) { |
| 426 | instExt.vertexAttribDivisorANGLE(globePositionAttrib, 0) |
| 427 | } |
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