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trail: allow displaying overview 

introduce off-screen buffer for overview
pull/3616/head
Pavel Machek 2024-08-29 23:34:46 +02:00
parent 8e78202737
commit 3342d9ec28
1 changed files with 35 additions and 14 deletions
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49
apps/trail/trail.app.js
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@ -333,7 +333,7 @@ function angleDifference(angle1, angle2) {
return difference;
}
function drawThickLine(x1, y1, x2, y2, thickness) {
function drawThickLine(gg, x1, y1, x2, y2, thickness) {
// Calculate the perpendicular offset for the line thickness
const dx = x2 - x1;
const dy = y2 - y1;
@ -343,7 +343,7 @@ function drawThickLine(x1, y1, x2, y2, thickness) {
// Draw multiple lines to simulate thickness
for (let i = -thickness / 2; i <= thickness / 2; i++) {
g.drawLine(
gg.drawLine(
x1 + offsetX * i,
y1 - offsetY * i,
x2 + offsetX * i,
@ -367,54 +367,74 @@ function toxy(pp, p) {
function paint(pp, p1, p2, thick) {
let d1 = toxy(pp, p1);
let d2 = toxy(pp, p2);
drawThickLine(d1.x, d1.y, d2.x, d2.y, thick);
//print(d1, d2);
drawThickLine(pp.g, d1.x, d1.y, d2.x, d2.y, thick);
}
var destination = {}, num = 0, dist = 0;
//{ rotate: Math.PI / 4 + i/100, scale: 1-i/100 }
function flip(pp) {
// pp.g.flip();
g.drawImage(g_over, 0, 0, {});
}
function read(pp, n) {
g.reset().clear();
let f = require("Storage").open(n+".st", "r");
let l = f.readLine();
let prev = 0;
while (l!==undefined) {
num++;
l = ""+l;
//print(l);
let p = egt.parse(l);
if (p.lat) {
if (prev) {
dist += fmt.distance(prev, p);
//paint(pp, prev, p);
if (pp.g)
paint(pp, prev, p, 1);
} else {
pp.lat = p.lat;
pp.lon = p.lon;
}
prev = p;
}
l = f.readLine();
if (!(num % 100)) {
ui.drawMsg(num + "\n" + fmt.fmtDist(dist / 1000));
if (!(num % 30)) {
if (!pp.g)
ui.drawMsg(num + "\n" + fmt.fmtDist(dist / 1000));
else
flip(pp)
print(num, "points");
}
num++;
}
ui.drawMsg(num + "\n" + fmt.fmtDist(dist / 1000));
if (!pp.g)
ui.drawMsg(num + "\n" + fmt.fmtDist(dist / 1000));
destination = prev;
}
var g_over = Graphics.createArrayBuffer(176, 176, 2, { msb: true });
function time_read(n) {
print("Converting...");
to_storage(n);
print("Running...");
let v1 = getTime();
let pp = {};
pp.lat = 50;
pp.lon = 14.75;
pp.ppm = 0.08; /* Pixels per meter */
pp.course = 270;
pp.ppm = 0.0008 * 5; /* Pixels per meter */
pp.course = 0;
pp.x = 176/2;
pp.y = 176/2;
pp.g = g_over;
read(pp, n);
// { rotate: Math.PI / 4 + i/100, scale: 1-i/100 }
flip(pp);
let v2 = getTime();
print("Read took", (v2-v1), "seconds");
step_init();
print(num, "points", dist, "distance");
setTimeout(step, 1000);
setTimeout(step, 5000);
}
var track_name = "", inf, point_num, track = [], track_points = 30, north = {};
@ -527,6 +547,7 @@ function step() {
let pp = fix;
pp.ppm = 0.08 * 3; /* Pixels per meter */
pp.g = g;
if (!fix.fix) {
let i = 2;