Van der Pol limit cycle - 2D nonlinear attractor

Dependencies:   mbed

Committer:
JLS
Date:
Wed Feb 09 22:35:32 2011 +0000
Revision:
0:964911ed238a

        

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JLS 0:964911ed238a 1 //
JLS 0:964911ed238a 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
JLS 0:964911ed238a 3 //
JLS 0:964911ed238a 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
JLS 0:964911ed238a 5 //
JLS 0:964911ed238a 6 // TFT_4DGL is free software: you can redistribute it and/or modify
JLS 0:964911ed238a 7 // it under the terms of the GNU General Public License as published by
JLS 0:964911ed238a 8 // the Free Software Foundation, either version 3 of the License, or
JLS 0:964911ed238a 9 // (at your option) any later version.
JLS 0:964911ed238a 10 //
JLS 0:964911ed238a 11 // TFT_4DGL is distributed in the hope that it will be useful,
JLS 0:964911ed238a 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
JLS 0:964911ed238a 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
JLS 0:964911ed238a 14 // GNU General Public License for more details.
JLS 0:964911ed238a 15 //
JLS 0:964911ed238a 16 // You should have received a copy of the GNU General Public License
JLS 0:964911ed238a 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
JLS 0:964911ed238a 18
JLS 0:964911ed238a 19 #include "mbed.h"
JLS 0:964911ed238a 20 #include "TFT_4DGL.h"
JLS 0:964911ed238a 21
JLS 0:964911ed238a 22 //****************************************************************************************************
JLS 0:964911ed238a 23 void TFT_4DGL :: set_font(char mode) { // set font size
JLS 0:964911ed238a 24 char command[2]= "";
JLS 0:964911ed238a 25
JLS 0:964911ed238a 26 int w, h, fx = 8, fy = 8;
JLS 0:964911ed238a 27
JLS 0:964911ed238a 28 command[0] = SETFONT;
JLS 0:964911ed238a 29 command[1] = mode;
JLS 0:964911ed238a 30
JLS 0:964911ed238a 31 current_font = mode;
JLS 0:964911ed238a 32
JLS 0:964911ed238a 33 if (current_orientation == IS_PORTRAIT) {
JLS 0:964911ed238a 34 w = SIZE_X;
JLS 0:964911ed238a 35 h = SIZE_Y;
JLS 0:964911ed238a 36 } else {
JLS 0:964911ed238a 37 w = SIZE_Y;
JLS 0:964911ed238a 38 h = SIZE_X;
JLS 0:964911ed238a 39 }
JLS 0:964911ed238a 40
JLS 0:964911ed238a 41 switch (mode) {
JLS 0:964911ed238a 42 case FONT_5X7 :
JLS 0:964911ed238a 43 fx = 6;
JLS 0:964911ed238a 44 fy = 8;
JLS 0:964911ed238a 45 break;
JLS 0:964911ed238a 46 case FONT_8X8 :
JLS 0:964911ed238a 47 fx = 8;
JLS 0:964911ed238a 48 fy = 8;
JLS 0:964911ed238a 49 break;
JLS 0:964911ed238a 50 case FONT_8X12 :
JLS 0:964911ed238a 51 fx = 8;
JLS 0:964911ed238a 52 fy = 12;
JLS 0:964911ed238a 53 break;
JLS 0:964911ed238a 54 case FONT_12X16 :
JLS 0:964911ed238a 55 fx = 12;
JLS 0:964911ed238a 56 fy = 16;
JLS 0:964911ed238a 57 break;
JLS 0:964911ed238a 58 }
JLS 0:964911ed238a 59
JLS 0:964911ed238a 60 max_col = w / fx;
JLS 0:964911ed238a 61 max_row = h / fy;
JLS 0:964911ed238a 62
JLS 0:964911ed238a 63 writeCOMMAND(command, 2);
JLS 0:964911ed238a 64 }
JLS 0:964911ed238a 65
JLS 0:964911ed238a 66 //****************************************************************************************************
JLS 0:964911ed238a 67 void TFT_4DGL :: text_mode(char mode) { // set text mode
JLS 0:964911ed238a 68 char command[2]= "";
JLS 0:964911ed238a 69
JLS 0:964911ed238a 70 command[0] = TEXTMODE;
JLS 0:964911ed238a 71 command[1] = mode;
JLS 0:964911ed238a 72
JLS 0:964911ed238a 73 writeCOMMAND(command, 2);
JLS 0:964911ed238a 74 }
JLS 0:964911ed238a 75
JLS 0:964911ed238a 76 //****************************************************************************************************
JLS 0:964911ed238a 77 void TFT_4DGL :: text_char(char c, char col, char row, int color) { // draw a text char
JLS 0:964911ed238a 78 char command[6]= "";
JLS 0:964911ed238a 79
JLS 0:964911ed238a 80 command[0] = TEXTCHAR;
JLS 0:964911ed238a 81
JLS 0:964911ed238a 82 command[1] = c;
JLS 0:964911ed238a 83 command[2] = col;
JLS 0:964911ed238a 84 command[3] = row;
JLS 0:964911ed238a 85
JLS 0:964911ed238a 86 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 0:964911ed238a 87 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 0:964911ed238a 88 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 0:964911ed238a 89
JLS 0:964911ed238a 90 command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 0:964911ed238a 91 command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 0:964911ed238a 92
JLS 0:964911ed238a 93 writeCOMMAND(command, 8);
JLS 0:964911ed238a 94 }
JLS 0:964911ed238a 95
JLS 0:964911ed238a 96 //****************************************************************************************************
JLS 0:964911ed238a 97 void TFT_4DGL :: graphic_char(char c, int x, int y, int color, char width, char height) { // draw a graphic char
JLS 0:964911ed238a 98 char command[10]= "";
JLS 0:964911ed238a 99
JLS 0:964911ed238a 100 command[0] = GRAPHCHAR;
JLS 0:964911ed238a 101
JLS 0:964911ed238a 102 command[1] = c;
JLS 0:964911ed238a 103
JLS 0:964911ed238a 104 command[2] = (x >> 8) & 0xFF;
JLS 0:964911ed238a 105 command[3] = x & 0xFF;
JLS 0:964911ed238a 106
JLS 0:964911ed238a 107 command[4] = (y >> 8) & 0xFF;
JLS 0:964911ed238a 108 command[5] = y & 0xFF;
JLS 0:964911ed238a 109
JLS 0:964911ed238a 110 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 0:964911ed238a 111 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 0:964911ed238a 112 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 0:964911ed238a 113
JLS 0:964911ed238a 114 command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 0:964911ed238a 115 command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 0:964911ed238a 116
JLS 0:964911ed238a 117 command[8] = width;
JLS 0:964911ed238a 118
JLS 0:964911ed238a 119 command[9] = height;
JLS 0:964911ed238a 120
JLS 0:964911ed238a 121 writeCOMMAND(command, 10);
JLS 0:964911ed238a 122 }
JLS 0:964911ed238a 123
JLS 0:964911ed238a 124 //****************************************************************************************************
JLS 0:964911ed238a 125 void TFT_4DGL :: text_string(char *s, char col, char row, char font, int color) { // draw a text string
JLS 0:964911ed238a 126
JLS 0:964911ed238a 127 char command[1000]= "";
JLS 0:964911ed238a 128 int size = strlen(s);
JLS 0:964911ed238a 129 int i = 0;
JLS 0:964911ed238a 130
JLS 0:964911ed238a 131 command[0] = TEXTSTRING;
JLS 0:964911ed238a 132
JLS 0:964911ed238a 133 command[1] = col;
JLS 0:964911ed238a 134 command[2] = row;
JLS 0:964911ed238a 135
JLS 0:964911ed238a 136 command[3] = font;
JLS 0:964911ed238a 137
JLS 0:964911ed238a 138 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 0:964911ed238a 139 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 0:964911ed238a 140 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 0:964911ed238a 141
JLS 0:964911ed238a 142 command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 0:964911ed238a 143 command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 0:964911ed238a 144
JLS 0:964911ed238a 145 for (i=0; i<size; i++) command[6+i] = s[i];
JLS 0:964911ed238a 146
JLS 0:964911ed238a 147 command[6+size] = 0;
JLS 0:964911ed238a 148
JLS 0:964911ed238a 149 writeCOMMAND(command, 7 + size);
JLS 0:964911ed238a 150 }
JLS 0:964911ed238a 151
JLS 0:964911ed238a 152 //****************************************************************************************************
JLS 0:964911ed238a 153 void TFT_4DGL :: graphic_string(char *s, int x, int y, char font, int color, char width, char height) { // draw a text string
JLS 0:964911ed238a 154
JLS 0:964911ed238a 155 char command[1000]= "";
JLS 0:964911ed238a 156 int size = strlen(s);
JLS 0:964911ed238a 157 int i = 0;
JLS 0:964911ed238a 158
JLS 0:964911ed238a 159 command[0] = GRAPHSTRING;
JLS 0:964911ed238a 160
JLS 0:964911ed238a 161 command[1] = (x >> 8) & 0xFF;
JLS 0:964911ed238a 162 command[2] = x & 0xFF;
JLS 0:964911ed238a 163
JLS 0:964911ed238a 164 command[3] = (y >> 8) & 0xFF;
JLS 0:964911ed238a 165 command[4] = y & 0xFF;
JLS 0:964911ed238a 166
JLS 0:964911ed238a 167 command[5] = font;
JLS 0:964911ed238a 168
JLS 0:964911ed238a 169 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 0:964911ed238a 170 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 0:964911ed238a 171 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 0:964911ed238a 172
JLS 0:964911ed238a 173 command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 0:964911ed238a 174 command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 0:964911ed238a 175
JLS 0:964911ed238a 176 command[8] = width;
JLS 0:964911ed238a 177
JLS 0:964911ed238a 178 command[9] = height;
JLS 0:964911ed238a 179
JLS 0:964911ed238a 180 for (i=0; i<size; i++) command[10+i] = s[i];
JLS 0:964911ed238a 181
JLS 0:964911ed238a 182 command[10+size] = 0;
JLS 0:964911ed238a 183
JLS 0:964911ed238a 184 writeCOMMAND(command, 11 + size);
JLS 0:964911ed238a 185 }
JLS 0:964911ed238a 186
JLS 0:964911ed238a 187 //****************************************************************************************************
JLS 0:964911ed238a 188 void TFT_4DGL :: text_button(char *s, char mode, int x, int y, int button_color, char font, int text_color, char width, char height) { // draw a text string
JLS 0:964911ed238a 189
JLS 0:964911ed238a 190 char command[1000]= "";
JLS 0:964911ed238a 191 int size = strlen(s);
JLS 0:964911ed238a 192 int i = 0, red5, green6, blue5;
JLS 0:964911ed238a 193
JLS 0:964911ed238a 194 command[0] = TEXTBUTTON;
JLS 0:964911ed238a 195
JLS 0:964911ed238a 196 command[1] = mode;
JLS 0:964911ed238a 197
JLS 0:964911ed238a 198 command[2] = (x >> 8) & 0xFF;
JLS 0:964911ed238a 199 command[3] = x & 0xFF;
JLS 0:964911ed238a 200
JLS 0:964911ed238a 201 command[4] = (y >> 8) & 0xFF;
JLS 0:964911ed238a 202 command[5] = y & 0xFF;
JLS 0:964911ed238a 203
JLS 0:964911ed238a 204 red5 = (button_color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 0:964911ed238a 205 green6 = (button_color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 0:964911ed238a 206 blue5 = (button_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 0:964911ed238a 207
JLS 0:964911ed238a 208 command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 0:964911ed238a 209 command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 0:964911ed238a 210
JLS 0:964911ed238a 211 command[8] = font;
JLS 0:964911ed238a 212
JLS 0:964911ed238a 213 red5 = (text_color >> (16 + 3)) & 0x1F; // get red on 5 bits
JLS 0:964911ed238a 214 green6 = (text_color >> (8 + 2)) & 0x3F; // get green on 6 bits
JLS 0:964911ed238a 215 blue5 = (text_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
JLS 0:964911ed238a 216
JLS 0:964911ed238a 217 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
JLS 0:964911ed238a 218 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
JLS 0:964911ed238a 219
JLS 0:964911ed238a 220 command[11] = width;
JLS 0:964911ed238a 221
JLS 0:964911ed238a 222 command[12] = height;
JLS 0:964911ed238a 223
JLS 0:964911ed238a 224 for (i=0; i<size; i++) command[13+i] = s[i];
JLS 0:964911ed238a 225
JLS 0:964911ed238a 226 command[13+size] = 0;
JLS 0:964911ed238a 227
JLS 0:964911ed238a 228 writeCOMMAND(command, 14 + size);
JLS 0:964911ed238a 229 }
JLS 0:964911ed238a 230
JLS 0:964911ed238a 231 //****************************************************************************************************
JLS 0:964911ed238a 232 void TFT_4DGL :: locate(char col, char row) { // place text curssor at col, row
JLS 0:964911ed238a 233 current_col = col;
JLS 0:964911ed238a 234 current_row = row;
JLS 0:964911ed238a 235 }
JLS 0:964911ed238a 236
JLS 0:964911ed238a 237 //****************************************************************************************************
JLS 0:964911ed238a 238 void TFT_4DGL :: color(int color) { // set text color
JLS 0:964911ed238a 239 current_color = color;
JLS 0:964911ed238a 240 }
JLS 0:964911ed238a 241
JLS 0:964911ed238a 242 //****************************************************************************************************
JLS 0:964911ed238a 243 void TFT_4DGL :: putc(char c) { // place char at current cursor position
JLS 0:964911ed238a 244
JLS 0:964911ed238a 245 text_char(c, current_col++, current_row, current_color);
JLS 0:964911ed238a 246
JLS 0:964911ed238a 247 if (current_col == max_col) {
JLS 0:964911ed238a 248 current_col = 0;
JLS 0:964911ed238a 249 current_row++;
JLS 0:964911ed238a 250 }
JLS 0:964911ed238a 251 if (current_row == max_row) {
JLS 0:964911ed238a 252 current_row = 0;
JLS 0:964911ed238a 253 }
JLS 0:964911ed238a 254 }
JLS 0:964911ed238a 255
JLS 0:964911ed238a 256 //****************************************************************************************************
JLS 0:964911ed238a 257 void TFT_4DGL :: puts(char *s) { // place string at current cursor position
JLS 0:964911ed238a 258
JLS 0:964911ed238a 259 text_string(s, current_col, current_row, current_font, current_color);
JLS 0:964911ed238a 260
JLS 0:964911ed238a 261 current_col += strlen(s);
JLS 0:964911ed238a 262
JLS 0:964911ed238a 263 if (current_col >= max_col) {
JLS 0:964911ed238a 264 current_row += current_col / max_col;
JLS 0:964911ed238a 265 current_col %= max_col;
JLS 0:964911ed238a 266 }
JLS 0:964911ed238a 267 if (current_row >= max_row) {
JLS 0:964911ed238a 268 current_row %= max_row;
JLS 0:964911ed238a 269 }
JLS 0:964911ed238a 270 }