I have a project which opens an image in PictureBox1, no problem. But the Public Static Color method at the bottom of the code is not working. I was hoping it would display the average value of the pixels in the image. why it is not working?
Code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing.Imaging;
using System.Drawing;
[Code]...
Howe can i display the average of 100 values in c++ 2008....
View 4 Replies View RelatedCode:
#include<stdio.h>
int calcAbvAvg(int marks[10], int avg) {
int students = 0;
int i;
for(i=0;i<10;i++)
[Code] .....
I suck at function and linked list. The only problem i am having in this question is the function calcAbvAbg() not working! I want that function to display the students who are above and below average!
My program for school works properly, but I cannot seem get the average to compute properly.
#include < iostream >
#include < iomanip >
#include < array >
#include < string >
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I have learnt about string class, file I/O and pointers. Now I am asked to write a program that includes the above topics, basically testing the ability to use dynamic arrays.
I've got 2 documents, namely "Students.txt" and "EnrollRecords.txt". "Students.txt" includes 40 students' info, which are university ID, programme names and their names. These 40 students are all BEng but from different departments.
E.g. 20141129 BEng(Civil) Tom Jerry
"EnrollRecords.txt" includes 166 data, which are course codes, university ID, respective scores in the test and GPA. In this document, the same student can have several scores of different courses' tests. So their uids repeat in it. And this document only contains the data of the Department of Computer Science. So students exist in the "Students.txt" may not exist in this document.
So my task is that the user enter a name (e.g. John), then the programme will know to find John and his uid, and get all the GPA of the courses that he has taken to calculate the average GPA.
E.g. 20147777 BEng(CompSc) John David //this is a John we are looking for in the "Students.txt"
//line 15 COMP1220 20147777 90 4 //so we find 3 courses in "ErollRecords.txt" that John has taken
//line 50 COMP1500 20147777 85 3.3
//line 88 ENGG2012 2014777 70 2.3
The programme should display :
20147777 3.2
To able to do anything for this task, I am asked to define 4 struct types:
struct Student {
int uid;
string programme;
string name;
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So now I am going to write a function queryD(Database d, string searchName) and any necessary functions in it. I am able to do the search part,
void queryD(Database d, string searchName) {
for (int i = 0; i < d.numberOfStudents; i++) {
if (d.students[i].name.substr(0, searchName.length()) == searchName) {
match_uid(d);
[Code] ....
But I struggle in how to match the uid in "Students.txt" and "EnrollRecords.txt" . Because there are repeated data for the same student in "ErollRecords.txt". So how am I gonna be able to match the uid and do the calculation? I get stuck in the for loop part...
Program that reads 10 students marks and display the average, the maximum and the minimum marks.
Code] ....
#include <Stdio.h>
main(){
// Local Declarations
int marks[10];
int i; /*loop counter */
int avg;
int sum = 0;
[Code] ....
In this program i am able to get Average Marks and Minimum Marks But i am not able to get the Maximum Marks Output correct.
I'm pretty new to C, just looking to see how to display a image and some text to go along with it so far I can display in the image but cannot display the text at the same time.
This is my source code below
Code:
#include <stdio.h>
#include <gd.h>
int main() {
gdImagePtr gdImage = gdImageCreate( 100, 100 );
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I have a project that I am working on and I have gotten stuck. I am getting a couple errors and would like to see how I can complete the program. Not very long of a program at that. My instructions are:
Write a program to calculate averages. Create a method named ReadData that will load a two dimensional array, named scoresArray, with the following data from a file:
132475.889.392.3
435686.383.498.3
479090.177.376.9
839373.976.389.3
556397.378.478.9
832987.365.377.2
271767.989.379.3
ReadData will have one argument, the scoresArray.
Create a method named DisplayAverages that will display the emplyee number (number starting 1324, 4356 etc) and the average of the three test grades. DisplayAverages will have one argument, the scoresArray. Your output should closely resemble the following.
Student #Test1Test2Test3Average
132475.889.392.385.8
etc, etc
Round averages to one decimal place. Passing arguments is important for this program. No global variables are allowed, except for the streamReader and the streamWriter. The scoresArray must be declared in Main and passed as an argument to the methods ReadData and DisplayAverages.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using LibUtil;
using System.IO;
using System.Text.RegularExpressions;
[Code] ....
When I run the following just to see where I am getting I get the following error:
UsersJoeDocumentsVisual Studio 2013ProjectsCIS110Program12Program12Prog
ram12Dat.txt was opened
Unhandled Exception: System.IndexOutOfRangeException: Index was outside the boun
ds of the array.
at Program12.Program.ReadData(Double[,] scoresArray) in c:UsersJoeDocument
sVisual Studio 2013ProjectsCIS110Program12Program12Program.cs:line 66
at Program12.Program.Main() in c:UsersJoeDocumentsVisual Studio 2013Proj
ectsCIS110Program12Program12Program.cs:line 24
Press any key to continue . . .
What am I missing here? I believe I have passed the arguments properly, but I am unable to declair the array within the bounds of the array?
how to display an image on the output screen of c++ program.
I am using : Turbo c++(dos box) on win8
how to insert an image to display in output on c++..
View 3 Replies View RelatedUsed some online code example to put a little project to display raw image. The display does not seem to work.For some purposes, I like this to work with a dialog based MFC project.XDVView is derived from CScrollView.
See OnInitDialog() and OnDraw(CDC* pDC).8bit 768x756
I am writing a class that dynamically allocates an array that holds a user-defined number of test scores (test scores go from 0 to 10 both included). Once all the test scores are entered and validated (values only between 0 and 10, both included), the array should be passed to a function that sorts them in ascending order. Another function should be called that calculates theaverage of all the scores.The main program should display the sorted list of scores and the average of the scores with appropriate headings.
View 6 Replies View RelatedHow to store and display an 8 bit Gray scale image in C captured from 8 bit Camera?
View 1 Replies View RelatedIm trying to convert a base 64 string to an image and store in a gridview control (windows 8)
instead of an image im seeing text in the control
Windows.UI.Xaml.MediaImaging.Bitmap
convert base 64 string to bitmap
public async Task<BitmapImage> Base64ToImage(string base64)
{
var bitmap = new BitmapImage();
var buffer = Convert.FromBase64String(base64);
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream()) {
[Code] ....
I am creating an employee details project, the image is getting stored in the database but i am not able display it in the picture box.
private void button1_Click(object sender, EventArgs e) {
SqlConnection con = new SqlConnection(Connectionstring);
con.Open();
SqlCommand cmd = new SqlCommand("select photo from emprecordtable where eid='"+comboBox1.Text+"'", con);
//SqlDataAdapter da = new SqlDataAdapter(cmd);
//DataSet ds = new DataSet();
[code] ....
In sql server i have table called emprecordtable and i have the fields eid, rfid, empname, designation, phno, addres, and photo which is the image field and i have given the datatype as image but in the database the image is getting stored as Binary Data.. So, how to display in the picturebox from the database.
I am writing a program to display values from a data file as an image. But I can only get a blue screen. Here is a small program resembling my code. what I have missed? I only changed OnDraw function.
Code:
void CColorDisplayView::OnDraw(CDC* pDC) {
CColorDisplayDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
CRect rect;
[code].....
I have a buffer which has a virtual width of 1024 pixels with virtual height 768 pixels (actual width stored in GPU.GPU_screenxsize, height in GPU.GPU_screenysize (both uint_32)).
I currently use the following function to plot the pixels to the screen:
inline void GPU_defaultRenderer() //Default renderer {
uint_32 pixel;
int bufferx; //Buffer's x!
int buffery; //Buffer's y!
int bufferxstart; //Buffer's x start!
int bufferystart; //Buffer's y start!
int pspx;
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How to combine the pixels together (blend them into one goal pixel) to get a better view? (Currently it takes the bottom right pixel of the area that represents the goal pixel).
So (x1,y1,x2,y2)->(pspx,pspy) = (bufferystart,bufferxstart,buffery,bufferx)->(pspx,pspy).
Atm this is (x2,y2)->(pspx,pspy)
Btw the pixel format is uint_32 RGBA (only RGB used atm). The psp_graphics_putpixel draws it onto the real VRAM. PSP_SCREEN_ROWS and PSP_SCREEN_COLUMNS represent the destination screen (the real screen)'s height and width in pixels.
I need to be able to take a bitmap e.g. "untitled.bmp" (bit depth: 24) and loop through every pixel from top left to bottom right and find the rgb (or hex) value for each pixel e.g. (255,255,255) for white and store this rgb (or hex) value in a two-dimensional array depending on its [column]and[row].
How to read bitmap data in in c++ . Also, I'm reluctant to use windows header files as I'd prefer it to be cross-platform.
How to load png files and extract their rgb pixels? Library recomendations?
View 2 Replies View RelatedHow to read pixels from an x,y coordinate using the VGA register values?
byte readVRAMdirect(VGA_Type *VGA, uint_32 start, uint_32 offset) //Used in 256 color mode!
{
if (!VGA->VRAM_size) return 0; //No size!
return VGA->VRAM[SAFEMOD((start*4)+offset,VGA->VRAM_size)]; //The full protected offset!
[code]....
getVRAMScanlineStart(VGA,y) gives the offset register multiplied by 2 (shl 1), multiplied with the current memory address size (byte, word or dword) multiplied by the scanline. 256-color mode is already working. GETBIT gives a bit #(0-7) of a specified byte.
writeVRAMplane & readVRAMplane are used by the CPU to write data to VRAM (address 0xA000:xxxx-0xBFFF:xxxx), determined by the memory read and write modes(working) and the odd/even, planar or chain4 enable mode (working).how to get the 16 color and interleaved shift mode working?
ZIP with screen captures: URL....
I must write a function that has a one dimensional double array and the number of values in the array as its arguments. Normalize the values. I must also print the maximum, minimum, average and numbers of values above the average in the array.
The equation that computes the normalized value from a value x is:
Normalized x= (x-min(array))/(max(array)-min(array))
My code does not print the correct normalized value, average and values above average.
Code:
#include <stdio.h>
int findMax( double array1[], int num_elements) // This function computes the maximum value of the array
{
int i, max=-32000;
for (i=0; i<num_elements; i++)
[Code] .....
I am trying to average the negative numbers and positive number and of course the total average.
This will read in a list of n values, where n is not known ahead of time. The number of values read into the array will be saved in n.
vector<int> readList() {
std::vector<int> result;
ifstream inFile;
inFile.open("setA.txt");
for (int x; inFile >> x; ) {
result.push_back(x);
[code]....
array is a one-dimensional array of integers and n is the number of elements in that array that contain valid data values. Both of these are input parameters to the function. The function must calculate 1) the average of the n integers in array, storing the result in ave; 2) the average of the positive numbers (> 0), storing the result in avePos, and 3) the average of the negative numbers (< 0), storing the result in aveNeg.
void avgs (std::vector &array, int &ave, int &avePos, int &aveNeg) {
int sum = 0, pos_sum = 0, neg_sum = 0, pos_count = 0, neg_count = 0;
for (auto i : array) {
sum += i;
if (i > 0) { pos_sum += i; ++pos_count; }
[code]....
tell me where the errors in the below code are?
Extra info:
getrowsize() gives the size of a row in bytes (see VGA CRTC register).
getVRAMMemAddrSize() gives the size of a pixel in memory (1=byte,2=word,4=dword)
set/getBitPlaneBit(startaddr,plane,offset,bit[,on when writing]) sets/gets a bit on a specific bit plane offset (start addr is the start address register from VGA,
plane is the plane to read/write,
offset is the offset within the plane,
bit is the bit to read/write (0-7),
[on(when writing) is the value of the bit)]
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im making a menu system to change the color of pixels in a gravity engine i made. the engine works fine, and the menu colors the particles, but will only ever turn them to red, no matter what color i tell it to change it to.
bool running = true;
bool colorChosen = false;
Uint32 particleColor;
Uint32 randomColor;
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Im trying to compare the image of a button to another image in Visual Studio like so...
//variables
Image active = Image.FromFile("C:\Users\Ethan\Desktop\StarWars Status\active.png");
Image stunned = Image.FromFile("C:\Users\Ethan\Desktop\StarWars Status\stunned.png");
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btnStatusPlr1.Image SHOULD come back as True.Then I realized it might not be the same as setting the buttons image in the properties (Which is what i did to get the original image (the one being compared to))
I do have a feeling ive done something wrong here (Yes im a noob /> )
Variable active, is the same image as the buttons default (Well should be)
I created class called students which suppose to store students names of in array but when I call the display function it display only the first name. but I want it to display names depending on the array size.
#include <iostream>
#include <sstream>
using namespace std;
const int SIZE=5;
[Code]....