Plot a function using SFML
I'm new to SFML. I searched Google to find a way to plot multiple points in SFML from an equation. For example, I want to plot 200 points (x,y) such that y = 2x, in the range (-10 < x < 10).
I couldn't seem to find the right functions to plot points in SFML, because most other functions are just drawing circle and other geometric shapes. If anyone know any functions for graphing in SFML, please tell me (Something like this: https://www.youtube.com/watch?v=jMrnSa6CHfE&t=42s, not the animation, just the plotting part).
Thanks a lot!
c++ plot sfml
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
add a comment |
I'm new to SFML. I searched Google to find a way to plot multiple points in SFML from an equation. For example, I want to plot 200 points (x,y) such that y = 2x, in the range (-10 < x < 10).
I couldn't seem to find the right functions to plot points in SFML, because most other functions are just drawing circle and other geometric shapes. If anyone know any functions for graphing in SFML, please tell me (Something like this: https://www.youtube.com/watch?v=jMrnSa6CHfE&t=42s, not the animation, just the plotting part).
Thanks a lot!
c++ plot sfml
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
You can set pixels in ansf::Imageif that's what you are after/
– Galik
Nov 21 '18 at 2:41
@galik: I think that might work. Do you have some sample codes for it? I just want to know how they work, because there are so many libraries in SFML.
– Brandon Williams
Nov 21 '18 at 2:44
add a comment |
I'm new to SFML. I searched Google to find a way to plot multiple points in SFML from an equation. For example, I want to plot 200 points (x,y) such that y = 2x, in the range (-10 < x < 10).
I couldn't seem to find the right functions to plot points in SFML, because most other functions are just drawing circle and other geometric shapes. If anyone know any functions for graphing in SFML, please tell me (Something like this: https://www.youtube.com/watch?v=jMrnSa6CHfE&t=42s, not the animation, just the plotting part).
Thanks a lot!
c++ plot sfml
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
I'm new to SFML. I searched Google to find a way to plot multiple points in SFML from an equation. For example, I want to plot 200 points (x,y) such that y = 2x, in the range (-10 < x < 10).
I couldn't seem to find the right functions to plot points in SFML, because most other functions are just drawing circle and other geometric shapes. If anyone know any functions for graphing in SFML, please tell me (Something like this: https://www.youtube.com/watch?v=jMrnSa6CHfE&t=42s, not the animation, just the plotting part).
Thanks a lot!
c++ plot sfml
c++ plot sfml
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
edited Nov 21 '18 at 2:41
Brandon Williams
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
asked Nov 21 '18 at 2:36
Brandon WilliamsBrandon Williams
275
275
You can set pixels in ansf::Imageif that's what you are after/
– Galik
Nov 21 '18 at 2:41
@galik: I think that might work. Do you have some sample codes for it? I just want to know how they work, because there are so many libraries in SFML.
– Brandon Williams
Nov 21 '18 at 2:44
add a comment |
You can set pixels in ansf::Imageif that's what you are after/
– Galik
Nov 21 '18 at 2:41
@galik: I think that might work. Do you have some sample codes for it? I just want to know how they work, because there are so many libraries in SFML.
– Brandon Williams
Nov 21 '18 at 2:44
You can set pixels in an
sf::Image if that's what you are after/– Galik
Nov 21 '18 at 2:41
You can set pixels in an
sf::Image if that's what you are after/– Galik
Nov 21 '18 at 2:41
@galik: I think that might work. Do you have some sample codes for it? I just want to know how they work, because there are so many libraries in SFML.
– Brandon Williams
Nov 21 '18 at 2:44
@galik: I think that might work. Do you have some sample codes for it? I just want to know how they work, because there are so many libraries in SFML.
– Brandon Williams
Nov 21 '18 at 2:44
add a comment |
1 Answer
1
active
oldest
votes
As Galik suggested, drawing pixels onto an image is a good solution.
You could try something along the lines of this:
sf::Vector2u size;
sf::Image graph;
graph.create(size.x, size.y, sf::Color(255, 255, 255));
// y = 2x
for (unsigned int x = 0; x < size.x; x++)
{
unsigned int y = 2u * x;
if (y < size.y)
{
graph.setPixel(x, y, sf::Color(0, 0, 0));
}
}
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53404552%2fplot-a-function-using-sfml%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
As Galik suggested, drawing pixels onto an image is a good solution.
You could try something along the lines of this:
sf::Vector2u size;
sf::Image graph;
graph.create(size.x, size.y, sf::Color(255, 255, 255));
// y = 2x
for (unsigned int x = 0; x < size.x; x++)
{
unsigned int y = 2u * x;
if (y < size.y)
{
graph.setPixel(x, y, sf::Color(0, 0, 0));
}
}
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
add a comment |
As Galik suggested, drawing pixels onto an image is a good solution.
You could try something along the lines of this:
sf::Vector2u size;
sf::Image graph;
graph.create(size.x, size.y, sf::Color(255, 255, 255));
// y = 2x
for (unsigned int x = 0; x < size.x; x++)
{
unsigned int y = 2u * x;
if (y < size.y)
{
graph.setPixel(x, y, sf::Color(0, 0, 0));
}
}
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
add a comment |
As Galik suggested, drawing pixels onto an image is a good solution.
You could try something along the lines of this:
sf::Vector2u size;
sf::Image graph;
graph.create(size.x, size.y, sf::Color(255, 255, 255));
// y = 2x
for (unsigned int x = 0; x < size.x; x++)
{
unsigned int y = 2u * x;
if (y < size.y)
{
graph.setPixel(x, y, sf::Color(0, 0, 0));
}
}
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
As Galik suggested, drawing pixels onto an image is a good solution.
You could try something along the lines of this:
sf::Vector2u size;
sf::Image graph;
graph.create(size.x, size.y, sf::Color(255, 255, 255));
// y = 2x
for (unsigned int x = 0; x < size.x; x++)
{
unsigned int y = 2u * x;
if (y < size.y)
{
graph.setPixel(x, y, sf::Color(0, 0, 0));
}
}
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
answered Nov 22 '18 at 0:44
JulxzsJulxzs
5001420
5001420
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53404552%2fplot-a-function-using-sfml%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
You can set pixels in an
sf::Imageif that's what you are after/– Galik
Nov 21 '18 at 2:41
@galik: I think that might work. Do you have some sample codes for it? I just want to know how they work, because there are so many libraries in SFML.
– Brandon Williams
Nov 21 '18 at 2:44