P5 js map

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We are about to switch to a new forum software. Until then we have removed the registration on this forum. On this interactive map, I would like to gather as many as possible of information related to one specific thematic. I mean, I will represent static information markers, geographical forms The dynamic information and animations are scheduled according to a global timer day by day, hour by hour I may have several tens of thousand information per map I've started prototyping the project using leaflet and some of its addons.

Leaflet uses the concept of layers to manage different level of information or interactions with the user. One of these addons is canvasLayer. I can add a canvas layer to the interactive map and draw on this canvas. Being integrated to the leaflet map, this canvas layer is automatically managed when resizing, moving, spanning and managing the user interaction.

But, to me, I suffer from a lack of algorithms for drawing all kinds of dynamic objects and then I have to implement most of them by myself On the other handp5. Is it feasible to integrate the p5. Right now, I would say that I envision to do the opposit of what David correct me if I'm wrong is explaining. I mean David is adding a mapbox map as a background image to a p5 canvas and then David uses the "scheduler mechanism " of the p5 canvas to draw the information onto the background map.

As for me, I think I need to "add" a p5 canvas into a map and then to use the map scheduler to call the draw function of p5. The reason I tend to do that is that the map scheduler allows, as I said, multiple layers which each layer a specific behavior.

The canvas being one these layers. I'm new with p5, but let me explain my understanding of p5 to check if it's correct These many libraries functions are called from the setup or draw p5 functions. The scheduler of the "leaflet canvasLayer" addon is doing quite the same as also calling a "requestAnimFrame" function.

I'm wondering whether I could Rather difficult because of potential conflicts I haven't tried, but it sounds like you would be setting noLoop and then calling draw or redraw. Howdy, Stranger! Sign In. Categories Recent Discussions Unanswered. Categories All Categories October edited October in p5. Now I'm at the point to ask my questions: Is it feasible to integrate the p5. I could replace leaflet by mapbox, as long as I keep the concept of interactive map. I'm open to any discussion about different approach in order to reach the same goal.

Could you help me please? Tagged: creategraphics redraw htmlcanvaselement mapbox leaflet.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

p5 js map

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am currently attempting to display a map in processing using a 2d array. Currently I have this down:. But, while I do get a map displayed, it appears to be rotated 90 degrees clockwise. What is causing this and how can I fix this?

p5 js map

A 2D array is an array of arrays. The first index selects the subarray at that index, and the second index selects the element in that subarray.

So in the simple example above, map[0] selects the subarray at index 0which is [1, 2]. Then map[0][1] selects the element in that subarray at index 1which is 2. This might seem a bit surprising if you were treating the indexes as an x, y pair. In that case, you'd expect 0, 1 to give you 3right? But it's not an x, y pair. It's an index into the outer array, then an index into the subarray. In other words, it's actually a y, x pair.

So to fix your problem, you can actually just swap the order of your indexes:. Now you use the y value to select which subarray you want which row you wantand the x value to select which element in that subarray you want which column you want.

Learn more. Issues with displaying a map in p5. Asked 1 year, 9 months ago. Active 1 year, 9 months ago. Viewed 31 times. Heezy W. Heezy 33 4 4 bronze badges. In the future please post a minimal reproducible example.

We can't run this code because we can't see what calls the drawMap function. Because in second loop each element is one cell or y is x position of rect and x of first loop is y position of rect, jsfiddle. Active Oldest Votes. Think about how the indexes of a 2D array work. Where is map[1][0]? Kevin Workman Kevin Workman By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Of late, most of my programming experience has been in Processingand more recently I have been wanting to branch out a little deeper in to some JavaScript, since they are slightly related.

I was just wondering, as my recent searching has turned up nothing, if JavaScript had a similar function to Processing's "map" function, in which a value and it's range is taken and remapped to a new range? PS: Yes, I also know that www. Here's an implementation of the Processing Math convenience methods in Javascript. It's a straight conversion of the original Processing Java source.

p5 js map

Not natively. Javascript core is really minimal See see for details.

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Mathematical functions are limited to what you find in the Math object. So for such a function to be widely available, you need an implementation in Javascript itself. If you want to remap more than one value to a defined range, you may want to use this version instead.

I wouldn't call it "map", personally, because of the well, my association of "map" with a list processing mechanism. Note that you might want to check for range reversal errors, I guess; I'm not familiar with the exact semantics of "map" from Processing. Learn more. Remap or Map function in Javascript Ask Question. Asked 9 years ago. Active 9 months ago. Viewed 16k times. Benjamin Jonathon Toon Jonathon Toon 2 2 gold badges 4 4 silver badges 15 15 bronze badges. But you can write your own easily.

For future reference, the source for most Processing functions are available here: github. Active Oldest Votes. Alnitak Alnitak k 65 65 gold badges silver badges bronze badges. Thanks a lot! This was mighty useful! Appreciate it.

I've reverted them. Jacob Oscarson Jacob Oscarson 5, 1 1 gold badge 30 30 silver badges 42 42 bronze badges. Reusable remap If you want to remap more than one value to a defined range, you may want to use this version instead.

Pointy Pointy k 50 50 gold badges silver badges bronze badges. Alnitak - ah you're right I'll let your answer stand and edit mine.This tutorial is based on the taxitracker data visualization.

The idea is to create a sketch that will show the route of a taxi during a day in New York.

Getting Started

I will try to keep things as simple as possible in order to show how to use maps and p5. The complete code is here. There are many different ways to create a local server. Here are some:.

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Open the index. This are the only things needed in index. Create an object holding the origin, zoom and a reference to the basemap style. You can use any basemap you want. For now we will use CartoDB:. Create a new variable called myMap and inside the setup function initialize that variable as an instance of mappa.

If it is not already running, run your local server and open the page something like localhost or localhost You should see this:. This is the same data set used in the taxitracker data visualization. It is in GeoJson format.

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GeoJSON is a format for encoding a variety of geographic data structures. It looks like this:. Geometric objects with additional properties are Feature objects. Sets of features are contained by FeatureCollection objects. You can see it contains a lot of information about the trips a taxi makes in a day in New York.

There is one object for every trip recorded with information about the fare, the number of passengers, pick-up time and location among other things. For now, we are just interested in using the coordinates of the taxi during its different trips.

So for each trip in the features array we need the geometry. This contains a series of arrays with the latitude and longitude position we need. Load the data add on p5. Since we are interested in using the latitude and longitude of the file we can loop over the array of features and then loop again over the array of coordinates in the geometry object and then again over each array containing the latitude and longitude.We are about to switch to a new forum software.

Until then we have removed the registration on this forum. This codetrain video goes through how to import a mapbox map image onto a p5. My question is - how does one incorporate a slippy map from mapbox into a p5. Also, if I were to draw a bunch of lat, long GPS points onto the slippy map, is it still possible to have them at the correct reference points as I zoom and pan around?

Is the zooming done by loading another image from their website, assuming you are using mapbox? Or are you applying zooming by scaling your sketch? For the former, you need to keep track of the center of your map and the zoom factor of you loaded map image. Then the web marcator functions will take care of the correct positioning of your points in your sketch yes, you need to keep using translate and any geocoordinate to be offset from the center as illustrated in the video.

Hello kfrajet, thanks for the input. I'm not sure what want g8f but I kind know waht I want, and why I upped. I am trying to have a slippy map, with drag and drop and zooming function. I tried like in the video with a static one, It's work, but when I switch the link found in the documentation with a slippy one.

It does'nt work anywork, the loading frizz in process and I go a Uncaught ReferenceError: require is not defined error. I don't know why it's not working. Edit your post. Select your code. Make sure there is an empty line above and below your code. For the static case, yes, there are several links offered by the mapbox API. When you are editing your map, click in create a static map and then you will be able to copy the link. You know that you have the right link when you see the latitude and longitude info in the last part of the link, exactly as in shiffman's video.

For dynamic panning and zooming, it will take some additional effort and to become familiar with the API. I can't promise anything on my side at the moment because I have my hands full. Get the static version working first. Thanks for the advice. There was a misunderstanding, the static version is working from the beginning.

For the dynamic one, I think I don't use the right function. But I hope I will.

p5 js map

Howdy, Stranger! Sign In. Categories Recent Discussions Unanswered. Categories All Categories February edited March in p5.

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Tagged: gps mapbox. March P5 is a javascript version of the very popular Processing tool. The contents of this tutorial is available under the CC-BY license.

The tutorial is written in a very incremental way. We start with something simple, and gradually add little bits and pieces that allow us to make more complex visualizations. So make sure to not skip parts of the tutorial: everything depends on everything that precedes it.

P5 is a language based on javascript.

Slippy Maps on p5.js

You can either use its own development environment, or load is as a dependency in your own scripts. There are Mac and Windows versions available. The numbers at the front of each line are the line numbers and are actually not part of the program. So if you type in this piece of code, do not type the line numbers.

First of all, the script needs to be wrapped in a function named setup. Within this function, the actual code is made up of a list of statements. The first line in the script createCanvassets the dimensions of the resulting image.

Next, line [4] we set the colour of anything we draw to red. The fill function takes 3 parameters, which are the values for red, green, and blue RGBranging from 0 to We then draw an ellipse with its center at horizontal position pixels and vertical position pixels. Note that the vertical position counts from the top down instead of from the bottom up.

The point 0,0 is at the top left rather than the bottom left… For the ellipse we set both the horizontal and vertical diameter to 20 pixels, which results in a circle.

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The next thing we do line [7] is set the colour of anything that we will draw to green fill 0,0and draw a rectangle at positionwith width set to 50 and height to Finally, we set the colour of lines to blue stroke 0,0,the stroke weight to 5 pixels strokeWeight 5and draw a line line ,5, This line runs from point ,5 toBoth fill and stroke are used to set colour: fill to set the colour of the shape, stroke to set the colour of the border around that shape.

In case of linesonly the stroke colour can be set. Several drawing primitives exist, including linerecttriangleand ellipse a circle is an ellipse with the same horizontal and vertical radius.Using the metaphor of a sketch, p5. You can think of your whole browser page as your sketch, including HTML5 objects for text, input, video, webcam, and sound. We are a community of, and in solidarity with, people from every gender identity and expression, sexual orientation, race, ethnicity, language, neuro-type, size, ability, class, religion, culture, subculture, political opinion, age, skill level, occupation, and background.

We acknowledge that not everyone has the time, financial means, or capacity to actively participate, but we recognize and encourage involvement of all kinds. We facilitate and foster access and empowerment. We are all learners. We hold events and operate with support from the Processing Foundation. Make your first sketch in the p5. Learn more about sketching with p5. Search p5js.

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Start creating with the p5 Editor! Community We are a community of, and in solidarity with, people from every gender identity and expression, sexual orientation, race, ethnicity, language, neuro-type, size, ability, class, religion, culture, subculture, political opinion, age, skill level, occupation, and background.

Learn more about our community. Get Started Make your first sketch in the p5. Get Involved There are many ways to contribute to p5. Teach a workshop or class. Organize a meet-up. Contribute to the codebase.


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