- #Perfect layers tool full#
- #Perfect layers tool code#
VE, EV connectivity Trees (while dealing with doublicates - not required for this case … but critical in the genenal aspect of things). And why is naive? Well … a graph without connectivity … blah, blah (not to mention duplicates). See this quite naive (acc 1) take on that matter. That said Morph Methods require a target Surface (thus you MAY use if clauses for excluding things if you use a BrepFace )
Do 1/2 and Morph map your Graph into some target Surface/BrepFace. This can yield easily Connectivity Trees: a Graph without connectivity is 100% useless … at least for AEC purposes. Mastermind some Method to do the seed Graph and define a - nested or not - Loop policy (as we do in dividing BrepFaces in U/V pts/pieces/cats/dogs) and create the “composite” Graph by calling the Method. This is used mostly if you want to treat your Graph as an Instance Definition (real-time response for big N or “clones”). Create your seed Graph - as a “module” - at Plane.WordXY (as we do in Instance Definitions) and then (a) Duplicate (general case: Curves - a reference type) your items - per module - then (b) Transform (Plane to Plane) them into destination(s). Specificity is still applied to conflicts within each layer, but conflicts between layers are always resolved by using the higher-priority layer styles. Using the at-rule and layered we can establish our own layers of the cascade - building from low-priority styles like resets and defaults, through themes, frameworks, and design systems, up to highest-priority styles, like components, utilities, and overrides. my-single_class Solution: cascade layers provide controlĬascade layers give CSS authors more direct control over the cascade so we can build more intentionally cascading systems without relying as much on heuristic assumptions that are tied to selection. The simplest way to ‘fix’ a conflict with specificity is to escalate the problem by adding otherwise unnecessary selectors, or (gasp) throwing the !important hand-grenade. It combines the act of selecting elements, with the act of prioritizing rule-sets. That’s a good guess, but it’s not a totally reliable rule, and that causes some issues: That is to say: how specific the selector is. Selector specificity, for example - our primary interaction with the cascade - is based on the assumption that more narrowly targeted styles (like IDs that are only used once) are likely more important than more generic and reusable styles (like classes and attributes). That may be partly because few other languages rely on a cascade as their central feature, but it’s also true that the original cascade relies heavily on heuristics (an educated-guess or assumption built into the code) rather than providing direct and explicit control to web authors. Managing cascade conflicts and selector specificity has often been considered one of the harder - or at least more confusing - aspects of CSS. These rules are usually more about avoiding the cascade, rather than putting it to use. And over the years, authors have developed a number of “methodologies” and “best practices” to avoid these situations - such as “only using a single class” for all selectors. Many of us have been in situations where we want to override styles from elsewhere in our code (or a third-party tool), due to conflicting selectors. Let’s take a look at the main problem and how cascade layers aim to solve it. * un-layered styles have the highest priority */ĬSS Cascade Layers are intended to solve tricky problems in CSS. * higher specificity, but lower layer priority */
* high layer priority, despite low specificity */
* import stylesheets into a layer (dot syntax represents nesting) url('framework.css') layer(amework) Quick example /* establish a layer order up-front, from lowest to highest priority reset, defaults, patterns, components, utilities, overrides
Debugging layer conflicts in browser developer tools. 
Use cases: When would I want to use cascade layers?.!important origins, context, and layers are reversed!.This guide is intended to help you fully understand what cascade layers are for, how and why you might choose to use them, the current levels of support, and the syntax of how you use them.
This is your complete guide to CSS cascade layers, a CSS feature that allows us to define explicit contained layers of specificity, so that we have full control over which styles take priority in a project without relying on specificity hacks or !important.
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