uncleflo
Registered since September 28th, 2017
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Stackoverflow - offsetTop vs. jQuery.offset().top
Saved by uncleflo on May 9th, 2018.
I have read that offsetLeft and offsetTop do not work properly in all browsers. jQuery.offset() is supposed to provide an abstraction for this to provide the correct value xbrowser. What I am trying to do is get the coordinates of where an element was clicked relative to the top-left of the element. Problem is that jQuery.offset().top is actually giving me a decimal value in FFX 3.6 (in IE and Chrome, the two values match). http://jsfiddle.net/htCPp/ exhibits the issue. If you click the bottom image, jQuery.offset().top returns 327.5, but offsetTop returns 328. I would like to think that offset() is returning the correct value and I should use it because it will work across browsers. However, people obviously cannot click decimals of pixels. Is the proper way to determine the true offset to Math.Round() the offset that jQuery is returning? Should I use offsetTop instead, or some other method entirely?
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State-space representation
Saved by uncleflo on June 23rd, 2017.
In control engineering, a state-space representation is a mathematical model of a physical system as a set of input, output and state variables related by first-order differential equations. "State space" refers to the Euclidean space in which the variables on the axes are the state variables. The state of the system can be represented as a vector within that space. To abstract from the number of inputs, outputs and states, these variables are expressed as vectors. Additionally, if the dynamical system is linear, time-invariant, and finite-dimensional, then the differential and algebraic equations may be written in matrix form. The state-space method is characterized by significant algebraization of general system theory, which makes it possible to use Kronecker vector-matrix structures. The capacity of these structures can be efficiently applied to research systems with modulation or without it. The state-space representation (also known as the "time-domain approach") provides a convenient and compact way to model and analyze systems with multiple inputs and outputs. With {\displaystyle p} p inputs and {\displaystyle q} q outputs, we would otherwise have to write down {\displaystyle q\times p} q\times p Laplace transforms to encode all the information about a system. Unlike the frequency domain approach, the use of the state-space representation is not limited to systems with linear components and zero initial conditions.
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How To Export Blender Models to OpenGL ES: Part 1/3 | Ray Wenderlich
Saved by uncleflo on February 8th, 2015.
Recently, we published Blender tutorial for beginners that showed you how to create your own 3D models in Blender. But you might be wondering – how can I export Blender models to OpenGL ES? That’s what this epic three-part tutorial series is all about! You will learn how to make an awesome 3D model viewer for iOS that can display models that you create in Blender.
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The Google Geocoding API - Google Maps API Web Services — Google Developers
Saved by uncleflo on December 11th, 2012.
Geocoding is the process of converting addresses (like "1600 Amphitheatre Parkway, Mountain View, CA") into geographic coordinates (like latitude 37.423021 and longitude -122.083739), which you can use to place markers or position the map. The Google Geocoding API provides a direct way to access a geocoder via an HTTP request. Additionally, the service allows you to perform the converse operation (turning coordinates into addresses); this process is known as "reverse geocoding."
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