uncleflo
Registered since September 28th, 2017
Has a total of 4281 bookmarks.
Showing top Tags within 5 bookmarks
howto information development guide reference administration design website software solution online service product business uk tool company linux code server application system web list video marine create data experience tutorial description explanation learn technology build article blog world project boat download windows lookup security free performance javascript technical london beautiful control network tools support course file research purchase image library programming youtube example php construction install opensource community html quality computer feature profile power browser music platform process mobile work user share manage professional database hardware buy industry advice internet dance developer installation 3d search camera access customer travel material standard money test develop documentation review css engineering photography webdesign engine device digital speed event api source management program question client phone discussion content simple story water marketing yacht app account setup interface package idea fast communication compare cheap script market study easy live google resource operation demonstration contact startup
Tag selected: ratio.
Looking up ratio tag. Showing 5 results. Clear
Displacement-Length Ratio of a Yacht: Skipper's Basics – no-frills-sailing.com
Saved by uncleflo on February 24th, 2019.
When sailors are talking about their boats they often refer to ratios and numbers. That´s a tendency in human behaviour to try to generalize things to make them comparable. Of course, everybody knows that you cannot really describe apple to pears and so it´s worthless to describe a let´s say Seventies IOR-era King´s Cruiser 33 like mine to a modern day cruising yacht but we nevertheless tend to do so. The Displacement-Length-Ratio in general is a non-dimensional number. It sets into relation the displacement of a boat (expressed in pounds) to the length of her waterline (in feet). So, in general, this ratio is looking for the relation between the (heavy?) volume of water being pushed aside by a boat´s hull and the length (and therefore speed potential see for my article Hull speed vs. Froude number here) of her hull. Sounds fair enough?
seaworthy froude mainsail bounce comfort generalize displacement waterline dimensional ratio yacht calculation boat basics sail compare cruiser hull sailing comparable sailor guess calculate design sailingboat behaviour volume length potential sound create build math mathematics marine
More Meaningful Typography
Saved by uncleflo on April 20th, 2018.
We have all heard of the golden mean (also known as the golden ratio or golden section): the self-replicating page with a proportion of 1:1.618 that is said to be found in everything from the design of ancient Greek architecture to the growth patterns of plants. This and other meaningful ratios rooted in geometry, music, nature, and history can be expressed as modular scales and put to work on the web. A modular scale is a sequence of numbers that relate to one another in a meaningful way. Using the golden ratio, for example, we can produce values for a modular scale by multiplying by 1.618 to arrive at the next highest number, or dividing by 1.618 to arrive at the next number down.
golden ratio development typography scale number proportion root web grow resize design website explanation blog article theory mathematics
PaintCode
Saved by uncleflo on September 19th, 2014.
Few days ago, Apple introduced iPhone 6 Plus. The new iPhone substantially changes the way graphics are rendered on screen. We've made an infographic to demystify this. The downscaling ratio is 1920 / 2208 = 1080 / 1242 = 20 / 23. That means every 23 pixels from the original render have to be mapped to 20 physical pixels. In other words the image is scaled down to approximately 87% of its original size.
apple iphone plus graphic screen ratio render pixel image size information howto guide scale factor display application device reference
iOS Resolution Reference - iPad, iPhone, and iPod Touch resolution, aspect ratios, icons sizes, and much more for iOS6 and iOS7.
Saved by uncleflo on September 19th, 2014.
A quick, visual reference for iPad, iPhone, and iPod Touch resolution. This is all very rough and based on my personal work at Pi'ikea St. If you have better data or would like to add anything just let me know.
ios resolution reference ipad responsive iphone ipod aspect programming development retina screen apple device mini percentage template size wallpaper list ratio
Convert color to grayscale
Saved by uncleflo on March 12th, 2012.
Colours in an image may be converted to a shade of gray by calculating the effective brightness or luminance of the colour and using this value to create a shade of gray that matches the desired brightness. The following code snippet isn't really a good example of how it should be done in a production situation but it does show the principles involved clearly. For every day use. see the ColorMatrix example below. The effective luminance of a pixel is calculated with the following formula: Y=0.3RED+0.59GREEN+0.11Blue This luminance value can then be turned into a grayscale pixel using Color.FromArgb(Y,Y,Y). Converting an image from colour to monochrome can be performed using the following code.
development formula ratio color luminance grayscale convert graphic information
No further bookmarks found.