I want to Draw multiple line Graph with each line have different color and different Data in Graph.
I show "CPTTestApp-iPad" an Example from Core plot 1.0 Examples folder. I plot single line chat but Still i dont clear all the thing.
Please can any one guide me to How to developing multi line chart? Any learning tutorial for multi line chart graph and beginner of core plot ?
A Core Plot graph can have as many plots as you want and they can be different types, too. Assign a unique identifier to each plot and use that in your datasource to determine what values to return.
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I am wondering if anyone knows of an elegant way to mark and highlight parts of a LineChart.
This could be done in a variety of ways, for example:
A. Using a dashed line "marked" regions of the graph
B. Shading the region underneath "marked" regions of the graph
ex: Filled Area Example
C. Using two distinct markers to distinguish the beginning and end of a "marked" region of the graph
The process of "marking" does not have to be touch-based - programmatic is OK too.
Any suggestions on implementation would be appreciated...thanks!
I am creating a UI in GUIDE, and I am wondering how does one put multiple 2 dimensional polygons on the same axes. When I try to do it, it either overwrites the old one, or creates a new window. I already have axes (handles.axes1) in my code, but that is not working. How do I get multiple shapes in the same plot?
I want to draw graph using Core Plot Library. I try to customize the x-axis Labels such as shown in attached Image.
this graph have two label on x-axis at one tick location. and title of axis at origin. Can i draw this type of graph using Core Plot or not ? If yes, how i can do this ?
Yes, you can do this. However you will have to use the latest coreplot code from the repository. AFAIK the attributed label formatter support no available yet in the latest official release. With that formatter you can give your labels the form you want (and use only one label with a line break, instead 2).
I'm making an iPhone app that uses Core Plot at one point in the application. I'm drawing a graph using a CPTScatterPlot and along the line I have CPTPlotSymbol plot symbols.
the graph is looking really good after some customizing but what I want to do is give the user a bit better visual representation of where exactly on the graph the current material is referring to.
I would like to "highlight" individual plot symbols along my line. I have the location on the xAxis of the point I want to manipulate. I have not been able to find any example of this or even a suggestion that it's possible, it seems to be possible for pie charts and bar plots though.
If it is not possible to change or manipulate the actual plot symbol at a point I'm quite happy to simply draw something over the symbol. If so, is there a way to get the x,y coordinates (in relation to the screen) of each plot symbol? Or will I have to calculate that from my data? My data varies a_lot so I'm simply auto resizing the plot area at the moment.
thanks!
You can implement the -symbolForScatterPlot:recordIndex: datasource method to customize the plot symbol at each point. Return nil if you don't want a symbol drawn at the given index. The Mac version of CPTTestApp (in the Core Plot examples folder) has a plot symbol demo that shows how to use this method.
I want to use core-plot for drawing line graph dynamically. data won't come at a time, we will be receiving point by point dynamically.
Is it possible to draw the chart dynamically using core-plot i.e drawing point by point as on when we receive the (x,y) point?
Please help me, Thanks.
Yes, you can do this reasonably easily. For each received data point, append it to an array of values to display. As these data points come in, call -reloadData on the Core Plot graph (or just the particular plot) to redraw the graph, passing in the array you just added a value to in response to the -numbersForPlot:field:recordIndexRange: delegate method.
If you need to adjust the plot range to track your data points (for a moving ticker), recalculate the new CPPlotRange for the X axis and set the plot space's xRange property to that.
Use the CPTestApp-iPhone, AAPLot, or StockPlot examples as templates for how to set up the line chart overall, and modify from that starting point.
I do something similar to this on the Mac in a scientific application:
(source: sunsetlakesoftware.com)
Sounds like you could make use of a demo project I put together and wrote about here (not core plot related though).
It draws a EKG graph but should easily be modified to use another input than the repeated "heart beat"...See line 320 in EAGLView.m where the indata is entered into the array.