examples/csound_floss_manual/01-GS-05-b.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "neither-cause",
   "metadata": {},
   "outputs": [],
   "source": [
    "import draw2Svg as dw"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "expected-amendment",
   "metadata": {},
   "outputs": [
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       "<draw2Svg.drawing.Drawing at 0x7fb82635f3a0>"
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     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "w,h = 1000,400\n",
    "d = dw.Drawing(w,h)\n",
    "\n",
    "def grid(num,length=800,margin_1=40,margin_2=41):\n",
    "    \"\"\"returns a list of num grid values between\n",
    "    margin_1 and height-margin_2 which are subtracted from length.\n",
    "    for horizontal, it counts from left to right\n",
    "    for vertical, it counts from top to bottom\"\"\"\n",
    "    real_length = length - margin_1 - margin_2\n",
    "    grid_step = real_length / (num-1)\n",
    "    return [i*grid_step+margin_1 for i in range(num)]\n",
    "\n",
    "def tick(x,y,leng=-5,**args):\n",
    "    \"\"\"axes tick\n",
    "    leng negative means from x,y to left\n",
    "    leng positive menas to bottom\"\"\"\n",
    "    if leng<0: d.append(dw.Line(x,y,x+leng,y,**args))\n",
    "    else: d.append(dw.Line(x,y,x,y+leng,**args))\n",
    "    \n",
    "\n",
    "x_grid = grid(29,w,10,20)\n",
    "y_grid = grid(5,h)\n",
    "\n",
    "# axes\n",
    "zero_left = x_grid[1],y_grid[4]\n",
    "zero_right = x_grid[15],y_grid[4]\n",
    "d.append(dw.Line(*zero_left,x_grid[14],y_grid[4],stroke='black'))\n",
    "d.append(dw.Line(*zero_left,x_grid[1],y_grid[0]-10,stroke='black'))\n",
    "d.append(dw.Line(*zero_right,w,y_grid[4],stroke='black'))\n",
    "d.append(dw.Line(*zero_right,x_grid[15],y_grid[0]-10,stroke='black'))\n",
    "\n",
    "# ticks and text for axes\n",
    "size = 14\n",
    "y_text = ['%d'%i for i in range(880,-1,-220)]\n",
    "x_text = ['%d'%i for i in range(13)]\n",
    "for i,y in enumerate(y_grid):\n",
    "    tick(x_grid[1],y,stroke='black')\n",
    "    d.append(dw.Text(y_text[i],size,x_grid[1]-7,y-1,text_anchor='end',valign='middle'))\n",
    "    tick(x_grid[15],y,stroke='black')\n",
    "    d.append(dw.Text(y_text[i],size,x_grid[15]-7,y-1,text_anchor='end',valign='middle'))\n",
    "for i,num in enumerate(x_text):\n",
    "    tick(x_grid[i+1],y_grid[4],5,stroke='black')\n",
    "    d.append(dw.Text(num,size,x_grid[i+1],y_grid[4]+5,text_anchor='middle',valign='top'))\n",
    "    tick(x_grid[i+15],y_grid[4],5,stroke='black')\n",
    "    d.append(dw.Text(num,size,x_grid[i+15],y_grid[4]+5,text_anchor='middle',valign='top'))\n",
    "d.append(dw.Text('Hz',size,x_grid[1]-3,y_grid[0]-20,text_anchor='end'))\n",
    "d.append(dw.Text('Hz',size,x_grid[15]-3,y_grid[0]-20,text_anchor='end'))\n",
    "d.append(dw.Text('sec',size,x_grid[14]-15,y_grid[4]+5,valign='top'))\n",
    "d.append(dw.Text('sec',size,x_grid[28]-15,y_grid[4]+5,valign='top'))\n",
    "\n",
    "# points\n",
    "freqs1 = [880,784,698,622,554,494,440,392,349,311,277,247,220]\n",
    "freqs2 = [880,825,770,715,660,605,550,495,440,385,330,275,220]\n",
    "psiz = 3\n",
    "xfreqs1 = []\n",
    "yfreqs1 = []\n",
    "y_range = (y_grid[4]-y_grid[0])\n",
    "tsiz = 10\n",
    "for i in range(13):\n",
    "    y = y_grid[4]-(freqs1[i]/880)*y_range\n",
    "    xfreqs1.append(x_grid[i+1])\n",
    "    yfreqs1.append(y)\n",
    "    d.append(dw.Circle(x_grid[i+1],y,psiz))\n",
    "    d.append(dw.Text('%d'%freqs1[i],tsiz,x_grid[i+1]+5,y-i/2))\n",
    "    y = y_grid[4]-(freqs2[i]/880)*y_range\n",
    "    d.append(dw.Circle(x_grid[i+15],y,psiz))\n",
    "    d.append(dw.Text('%d'%freqs2[i],tsiz,x_grid[i+15]+5,y-3))\n",
    "\n",
    "# line for freqs2\n",
    "d.append(dw.Line(x_grid[15],y_grid[0],x_grid[27],y_grid[3],stroke='black',stroke_width=2))\n",
    "\n",
    "# curve for freqs1\n",
    "#print(xfreqs1,yfreqs1)\n",
    "dx = xfreqs1[1] - xfreqs1[0]\n",
    "p = dw.Path(stroke='black',fill='none',stroke_width=2)\n",
    "p.M(xfreqs1[0],yfreqs1[0])\n",
    "for i in range(12):\n",
    "    dy = yfreqs1[i+1]-yfreqs1[i]\n",
    "    p.Q(xfreqs1[i]+dx/2,yfreqs1[i]+dy/2,xfreqs1[i+1],yfreqs1[i+1])\n",
    "d.append(p)\n",
    "\n",
    "# final text\n",
    "big = 20\n",
    "d.append(dw.Text('Freqs_1',big,x_grid[1]+(x_grid[14]-x_grid[1])/2,y_grid[0],\n",
    "                 text_anchor='middle',font_family='courier',font_weight='bold'))\n",
    "d.append(dw.Text('Freqs_2',big,x_grid[15]+(x_grid[28]-x_grid[15])/2,y_grid[0],\n",
    "                 text_anchor='middle',font_family='courier',font_weight='bold'))\n",
    "\n",
    "# dotted lines at 6 seconds\n",
    "d.append(dw.Lines(x_grid[1],y_grid[2],x_grid[7],y_grid[2],x_grid[7],y_grid[4],\n",
    "                  fill='none',stroke='gray',stroke_dasharray='3 3'))\n",
    "d.append(dw.Lines(x_grid[15],y_grid[2]-y_range/8,x_grid[21],y_grid[2]-y_range/8,x_grid[21],y_grid[4],\n",
    "                  fill='none',stroke='gray',stroke_dasharray='3 3'))\n",
    "\n",
    "d.savePng('01-GS-05-b.png')\n",
    "d"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "weekly-formation",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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