I have a jqgrid with more than thousands of data. In pad there is not smooth scrolling of grid rows. (I am using Ace Admin theme) Do anybody know any solutions. thanks in advance
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My UI screens currently use jQuery datatables. I need to add chart feature to some of the screens. I have worked on some samples that utilizes google chart APIs and some that are rendered using jQuery highchart. My first inclination is to use jQuery highchart since all my screens render data tables using jQuery datatables. Is there a technical reason, difference or performance orientation that I choose one over the other. I have been researching this but did not find a concrete reason to bias towards one of the options.
I've diligently used both, and the way it stands today, highcharts just has more to offer, and documentation is superb. You can make that decision yourself by looking at the charts gallery for Google Charts and Highcharts. I personally also think Google Charts has a steeper learning curve. They have two very distinct versions and just more clumsy getting it running. Lastly, Highcharts has animation by default.
You can use jQuery datatables for both though.
I want to make a comic book of 60 pages. I only need to design 2 kinds of page, one for odd number of pages and another for even number of pages. I designed these 2 kind of layout with adove illustrator, but but inserting comic pictures very tedious and placing exact places are quite difficult.
I think of Latex, but I have not much experiences with it. could anyone tell me how to design comic pages with latex. each page only have 4 picture with a title,quite simple. I want to know how to start such things.
I want to able to draw tables and place pictures at exact positions. is there any way to design layout of pages with latex?
Thanks in advance
:)
I'm using a UICollectionView on my iPad 3 to display a dashboard of BarChart using CorePlot. I have around 3 pages of 6 BarChart.
When user scrolls the UICollectionView there're some lags.
I have changed the theme of my BarChart from kCPTDarkGradientTheme to kCPTPlainBlackTheme and the scroll is much better but it still lags a little.
From instrument it seems it takes some times (160ms) in -(void)recursivelyRenderInContext:(CGContextRef)context from CPTLayer.
Any idea how to improve it?
Regards,
Sébastien.
Solid colors render a lot faster than gradients, so that explains the improvement when you changed themes. Are you caching the generated graph images so they only have to render once? The iOS version of the Plot Gallery example app use a table view to show the graph thumbnails, but it might give you some ideas how to structure your app for better performance.
In my App I need to draw graph data with different datamodels that frequently change and can not be generalized. This graph data must be editable with a slider or a segmented control.
The idea is to load all necessary data to draw the graph from the server. Is html5 the right solution? Can the iPad-UI-Controlls used to manipulate the graph?
Where do I start and how much work is it?
Currently I'm using Core Plot to draw the graph - but I need to model my graph data on the server.
Option 1: If you are developing for Android as well or you are better at javascript, then you can use HTML5.0. Have a look at http://www.sencha.com/products/touch/charts/
Option 2: If you want to develop it natively for iPad(which I feel is a better option), then please look at google library for graph http://code.google.com/p/core-plot/ and Is there a good charting library for iPhone?
I extended the work of this gentleman:
http://buildmobile.com/creating-a-graph-with-quartz-2d/#fbid=EKAB22zV7It
And I'm quite pleased with the results. It took me about a week to get my graph able to draw a stock chart with scrolling, pinching zooming, 3 different symbol indicators, a secondary plot line, tap-able data points with a little custom popover showing details, and a few annotations. Not bad considering the overall complexity, and largely thanks to the detailed walkthrough.
He also talks about why he didn't use Core Plot.
Good luck,
Damien
Super noob here:
I am trying to create a scrollview that will scroll through a number of pdf's in a two dimensional array for use on an iPad. As if I tiled all the pdf's and wanted to be able to scroll from page to page by scrolling up/down/left/right. How can I do that?
Any help is appreciated!
I have to read the PDF pages and write them as image contexts. The big problem here is that it you will use a mechanism to generate the pages lazily keeping a little buffer of advance.
The only thing I don't get is why you need a 2D array to store a PDF if this can be done with a 1D array?