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river create fix

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Azgaar 2021-08-24 20:11:09 +03:00
parent e4fd3a6186
commit f7d1706b81
3 changed files with 11 additions and 11 deletions
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9
modules/river-generator.js
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@ -38,7 +38,7 @@ window.Rivers = (function () {
const lakeOutCells = Lakes.setClimateData(h);
land.forEach(function (i) {
cells.fl[i] += prec[cells.g[i]] * area[i] / 100; // add flux from precipitation
cells.fl[i] += (prec[cells.g[i]] * area[i]) / 100; // add flux from precipitation
// create lake outlet if lake is not in deep depression and flux > evaporation
const lakes = lakeOutCells[i] ? features.filter(feature => i === feature.outCell && feature.flux > feature.evaporation) : [];
@ -169,7 +169,7 @@ window.Rivers = (function () {
const widthFactor = !parent || parent === riverId ? 1.2 : 1;
const meanderedPoints = addMeandering(riverCells);
const discharge = cells.fl[mouth]; // m3 in second
const length = rn(getApproximateLength(meanderedPoints), 2);
const length = getApproximateLength(meanderedPoints);
const width = getWidth(getOffset(discharge, meanderedPoints.length, widthFactor, 0));
pack.rivers.push({i: riverId, source, mouth, discharge, length, width, widthFactor, sourceWidth: 0, parent, cells: riverCells});
@ -414,7 +414,10 @@ window.Rivers = (function () {
return rw(riverTypes[isFork ? "fork" : "main"][isSmall ? "small" : "big"]);
};
const getApproximateLength = points => points.reduce((s, v, i, p) => s + (i ? Math.hypot(v[0] - p[i - 1][0], v[1] - p[i - 1][1]) : 0), 0);
const getApproximateLength = points => {
const length = points.reduce((s, v, i, p) => s + (i ? Math.hypot(v[0] - p[i - 1][0], v[1] - p[i - 1][1]) : 0), 0);
return rn(length, 2);
};
// Real mouth width examples: Amazon 6000m, Volga 6000m, Dniepr 3000m, Mississippi 1300m, Themes 900m,
// Danube 800m, Daugava 600m, Neva 500m, Nile 450m, Don 400m, Wisla 300m, Pripyat 150m, Bug 140m, Muchavets 40m

9
modules/ui/rivers-creator.js
View file

@ -100,16 +100,13 @@ function createRiver() {
const basin = getBasin(parent);
rivers.push({i: riverId, source, mouth, discharge, length, width, widthFactor, sourceWidth, parent, cells: riverCells, basin, name, type: "River"});
const id = "river" + riverId;
// render river
lineGen.curve(d3.curveCatmullRom.alpha(0.1));
viewbox
.select("#rivers")
.append("path")
.attr("id", "river" + riverId)
.attr("d", getRiverPath(meanderedPoints, widthFactor, sourceWidth));
viewbox.select("#rivers").append("path").attr("id", id).attr("d", getRiverPath(meanderedPoints, widthFactor, sourceWidth));
editRiver(riverId);
editRiver(id);
}
function closeRiverCreator() {