New to graphics programming - what to learn? - Raspberry Pi Forums

-

hi,

have application revolves around 1024 x 1280 display (ie config sets screen rotated 90 degrees). application needs display jpegs in sequence, , page of text scroll.

i'm using html , kweb3 this, passable, transitions between images clunky, , text scrolling isn't smooth. thinking can code need (since layouts simple anyway), , interface gpio, i've made electronics interface..

want achieve smooth transitions (fade or slide) between jpegs, , smooth text scrolling @ reasonable speed.

far can make out, best chance of success may use openvg , ajstarks library, although there's called openframeworks i've encountered.

have programming background in php/mysql, , know little c (low level pic programming). i've used python, i'm ruling out don't think there openvg libraries it. realise i'm going have learn new stuff, , prospect little daunting quite exciting!

easiest language accomplish in?

easiest language going give best performance, or isn't there difference?

should use ajstarks openvg library, or openframeworks?

wouldn't easier generate video stills embedded scrolling text ffmpeg , play omxplayer?

alternative create , run slideshow in libreoffice impress.


raspberrypi



Comments

Post a Comment

Popular posts from this blog

invalid use of void expresion in FlexiTimer2 library

-
Image
hello, first post asking in forum patient if dont correctly   well, im trying make robot evades obstacles , uses interrupts in order distances. ive used flexitimer2 run void function each 5ms, problem whe try verify program says me there error in use of flexitimer.    code: [select] flexitimer2::set(1, 1.0/1000, rastreodistanciamin()); i copy code below, please can tell error , how solve it, ive been loking dont know do. thank you code: [select] #include <flexitimer2.h> #include <servo.h> //motor a int ena = 7; int in1=6; int in2 = 5; //motor b int in3=11; int in4=10; int enb=9; servo cabeza; //hc-sr04 device int echo = 13; int triger = 12; //it use hc-sr04 determine , return distance in front of him int calculodistancia(){   volatile int tiempo;   volatile int distancia;   digitalwrite(triger,low); /* por cuestión de estabilización del sensor*/   delaymicroseconds(5);   digitalwrite(triger, high); ...
Read more

error: a function-definition is not allowed here before '{' token

-
i'm new member. me pls code: [select] void manhinh1(){                              tempc = analogread(adc);   tempc = tempc * 0.48828125;                                          lcd.setcursor(0, 0); lcd.print("nhiet: ");                                      lcd.setcursor(7, 0); lcd.print(tempc);   lcd.setcursor(13,0); lcd.print((char)223);    lcd.setcursor(14,0); lcd.print("c");   if(max > min){     if (tempc > max)            {digitalwrite(fan, low);           lcd.setcursor(2, 1); lcd.print("lam mat.....");}     else if (tempc < min)         ...
Read more

the error "invalid plugin detected. Adobe Reader will quit"

-
i have gotten rikla adobe. , use example code basicplugin(you can download adobe wetsite) plug_in, then, made api file according steps in document in "creating adobe reader plug_in" section of "developping plug_ins , applications". last,i copy api file plug_ins folder, open adobe reader 8. saw under tool memu there new menu named acrobat sdk think api file loaded acrobat reader. error appears, "invalid plugin detected. adobe reader quit". can tell me why?thank you. the first thing check whether plug-in job when load in acrobat. aandi inston More discussions in Acrobat SDK adobe
Read more