-
Notifications
You must be signed in to change notification settings - Fork 0
/
antenna-pattern.js
402 lines (321 loc) · 9.93 KB
/
antenna-pattern.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
var Status = {
NONE: 0,
SELECTING_CENTER: 1,
SELECTING_EDGE: 2,
SELECTING_POINT: 3,
}
var __status = Status.NONE
var __base_image = new Image()
var __rotation_deg = 0
var __config = {
}
var __center_point = {
x: null,
y: null,
db: null
}
var __edge_point = {
x: null,
y: null,
db: null
}
var __current_deg = 0
var __selected_points = []
function redraw_canvas() {
let canvas = document.getElementById("canvas-ant")
let ctx = canvas.getContext("2d")
let img_w = __base_image.width
let img_h = __base_image.height
let canvas_img_w = canvas_w = canvas.width
let canvas_img_h = canvas_h = canvas.height
let fit_rate_x = canvas_w / img_w
let fit_rate_y = canvas_h / img_h
let fit_rate = 1.0
if (fit_rate_x > fit_rate_y) {
fit_rate = fit_rate_y
} else {
fit_rate = fit_rate_x
}
canvas_img_w = img_w * fit_rate
canvas_img_h = img_h * fit_rate
ctx.clearRect(0,0, canvas.width, canvas.height)
ctx.save();
ctx.translate(canvas_img_w / 2, canvas_img_h / 2);
ctx.rotate(__rotation_deg * (Math.PI / 180))
ctx.translate(-canvas_img_w / 2, -canvas_img_h / 2);
ctx.drawImage(__base_image,
0, 0, __base_image.width, __base_image.height,
0, 0, canvas_img_w, canvas_img_h)
//ctx.drawImage(__base_image,
// 0, 0, __base_image.width, __base_image.height,
// 0, 0, canvas_img_w, canvas_img_h)
ctx.restore()
if (__config.center != null && __config.center.xy != null) {
draw_circle(__config.center.xy, 5, "black")
}
if (__config.edge != null && __config.edge.xy != null) {
draw_circle(__config.edge.xy, 5, "red")
}
draw_align_line(__config)
draw_selected_points(__selected_points)
}
function draw_center_edge_points(center, edge){
draw_circle(center, 5, "black")
draw_circle(edge, 5, "black")
}
function draw_align_line(config) {
if (config.center == null || config.center.xy == null) {
return
}
if (config.edge == null || config.edge.xy == null) {
return
}
let linelen = calc_distance_px(config.center.xy, config.edge.xy)
let canvas = document.getElementById("canvas-ant")
let ctx = canvas.getContext("2d")
for (let deg = 0; deg <= 180; deg += 10) {
let rad = deg2rad(deg)
deg_edge_x = __config.center.xy.x + Math.sin(rad) * linelen
deg_edge_y = __config.center.xy.y - Math.cos(rad) * linelen
ctx.moveTo(config.center.xy.x, config.center.xy.y)
ctx.lineTo(deg_edge_x, deg_edge_y)
ctx.lineWidth=0.5
ctx.strokeStyle="gray"
ctx.stroke()
}
}
function draw_selected_points(points) {
for (let idx in points) {
console.log(idx)
let point = points[idx]
//__center_point.x = point.x
//__center_point.y = point.y
draw_circle(point, 5, "blue")
}
}
function draw_circle(center, r, color) {
if (center == null) {
return
}
if (center.x == null || center.y == null || r == null) {
return
}
let canvas = document.getElementById("canvas-ant")
let ctx = canvas.getContext("2d")
ctx.beginPath()
ctx.arc(center.x, center.y, r, 0 * Math.PI / 180, 360 * Math.PI / 180, false)
ctx.fillStyle = color
ctx.fill();
ctx.stroke()
}
function calc_distance_px(p0, p1) {
return Math.sqrt(
Math.pow( Math.abs(p0.x - p1.x), 2) +
Math.pow( Math.abs(p0.y - p1.y), 2)
)
}
function deg2rad(deg) {
return deg * (Math.PI / 180)
}
function get_mouse_coordinate(e) {
var mapOffset = document.querySelector("canvas").getBoundingClientRect()//$("#canvas-map").getBoundingClientRect()
mouseX = parseInt(e.clientX - mapOffset.left)
mouseY = parseInt(e.clientY - mapOffset.top)
return {x: mouseX, y: mouseY}
}
function on_selecting_center_at(xy) {
console.log("xy", xy)
let db = parseInt($("#text-center-db").val())
__config.center = {
db: db,
xy: xy,
}
console.log("center: ", __config.center)
redraw_canvas()
__status = Status.NONE
}
function on_selecting_edge_at(xy) {
console.log("xy", xy)
let db = parseInt($("#text-edge-db").val())
xy.x = __config.center.xy.x
__config.edge = {
db: db,
xy: xy,
}
console.log("edge: ", __config.edge)
__edge_point.x = __config.edge.xy.x
__edge_point.y = __config.edge.xy.y
redraw_canvas()
__status = Status.NONE
}
function calculate_db_at_xy(xy) {
let center = __config.center
let edge = __config.edge
if (center == null || edge == null) {
console.log(center, edge)
return
}
let db_scale = Math.abs(center.db - edge.db)
let len_scale = Math.abs(center.xy.y - edge.xy.y)
let db_per_px = db_scale / len_scale
let len_xy_from_center = calc_distance_px(center.xy, xy)
let db = len_xy_from_center * db_per_px + center.db
console.log("xy to db", db)
}
function calculate_perp_point(line_start, line_end, point) {
let perp_point = {
x: 0,
y: 0
}
if (line_start.x == line_end.x) { // line is vertical
console.log("vertical")
perp_point.x = line_start.x
perp_point.y = point.y
} else if (line_start.y == line_end.y) { // line is horizontal
console.log("horizontal")
perp_point.x = point.x
perp_point.y = line_start.y
} else {
console.log("angled", line_end, line_start, point)
let m1 = (line_end.y - line_start.y) / (line_end.x - line_start.x)
let b1 = line_start.y - (m1 * line_start.x)
let m2 = -1.0 / m1;
let b2 = point.y - (m2 * point.x)
console.log(m1, b1, m2, b2)
perp_point.x = (b2 - b1) / (m1 - m2)
perp_point.y = (b2 * m1 - b1 * m2) / (m1 - m2)
}
return perp_point
}
function on_selecting_point_at(xy) {
console.log("point selected: ", xy)
let x = xy.x
let y = xy.y
let deg = __current_deg
let rad = deg2rad(deg)
let current_edge = {
x: 0,
y: 0,
db: -99,
}
let center_point = __config.center.xy
current_edge.x = (__config.edge.xy.x - center_point.x) * Math.cos(rad) - (__config.edge.xy.y - center_point.y) * Math.sin(rad) + center_point.x
current_edge.y = (__config.edge.xy.x - center_point.x) * Math.sin(rad) + (__config.edge.xy.y - center_point.y) * Math.cos(rad) + center_point.y
console.log("current_edge", current_edge)
let prep_point = calculate_perp_point(
center_point,
current_edge,
xy
)
console.log("prep_point for deg:", deg, prep_point)
let distance = calc_distance_px(center_point, prep_point)
let full_distance = calc_distance_px(center_point, __config.edge.xy)
let full_db = Math.abs(__config.edge.db - __config.center.db)
let db = full_db * (distance / full_distance) + __config.center.db
console.log("distance,full,full_db, db", distance, full_distance,full_db, db)
console.log("db => ", db)
prep_point.db = db
//let new_point = {
// x: xy.x,
// y: xy.y
//}
//__selected_points.push(new_point)
__selected_points.push(prep_point)
let elm = document.getElementById("point-counter")
elm.innerText = __selected_points.length + " points"
__current_deg += 10
if (__current_deg > 180) {
__status = Status.NONE;
}
}
function print_output_to_textarea(textarea_id) {
let str = "";
let obj = {
base: $("#text-base-model").val(),
key: "KEY",
name: $("#text-display-name").val(),
peak_db: 0,
resolution: 10,
bias_map: []
}
for (let idx = 0; idx < __selected_points.length; idx++) {
let db_floor2 = Math.round(__selected_points[idx].db * 100) / 100
obj.bias_map.push(db_floor2)
}
str = JSON.stringify(obj, null, 2)
$(textarea_id).val(str)
}
function canvas_click(e) {
let xy = get_mouse_coordinate(e)
switch (__status) {
case Status.NONE:
calculate_db_at_xy(xy)
break
case Status.SELECTING_CENTER:
on_selecting_center_at(xy)
break
case Status.SELECTING_EDGE:
on_selecting_edge_at(xy)
break
case Status.SELECTING_POINT:
on_selecting_point_at(xy)
break
default:
break
}
console.log(__selected_points)
redraw_canvas()
}
function change_image(e) {
let file = e.target.files[0]
console.log("change_image file=", file)
let file_name = file.name
if (!file.type.match('image/.*')) {
return
}
let reader = new FileReader()
reader.onload = function() {
let imgsrc = reader.result
__base_image.src = imgsrc
__base_image.onload = function () {
redraw_canvas()
}
}
reader.readAsDataURL(file)
}
function rotate_image(e) {
__rotation_deg = (__rotation_deg + 90) % 360
redraw_canvas()
}
function selecting_center (e) {
__status = Status.SELECTING_CENTER
}
function selecting_edge (e) {
__status = Status.SELECTING_EDGE
}
function start_selecting_point(e) {
__status = Status.SELECTING_POINT
}
function end_selecting_point(e) {
__status = Status.NONE
print_output_to_textarea("#textarea-result")
}
function copy_textarea(e) {
let text = $("#textarea-result").val()
if (navigator.clipboard) {
return navigator.clipboard.writeText(text).then(function() {
console.log("copied")
})
} else {
$("#textarea-result").select()
document.execCommand("copy")
}
}
$("#canvas-ant").click(function(e) { canvas_click(e) })
$("#button-load-img").on("change", function(e) { change_image(e) })
$("#button-rotate").click(function(e) { rotate_image(e)})
$("#button-select-center").click(function(e) { selecting_center(e) })
$("#button-select-edge").click(function(e) { selecting_edge(e) })
$("#button-start-point").click(function(e) { start_selecting_point(e) })
$("#button-end-point").click(function(e) { end_selecting_point(e) })
$("#button-copy").click(function(e) { copy_textarea()})