Improve on log scale handling 0(zero) #1578
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netil
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Jul 31, 2020
Replace the use of d3.scaleLog to d3.scaleSymlog to handle 0(zero) in scale values. Ref naver#1578
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Aug 4, 2020
# [2.1.0-next.1](2.0.1...2.1.0-next.1) (2020-08-04) ### Bug Fixes * **arc:** wrong right padding calculation ([f5a8602](f5a8602)), closes [#1545](#1545) * **area:** Fix dynamic area loading ([9d6e1e0](9d6e1e0)), closes [#1547](#1547) * **axis:** fix y axis clip-path coordinates ([bdf7694](bdf7694)), closes [#1572](#1572) * **types:** Specify context for callbacks ([f3b9f26](f3b9f26)), closes [#1551](#1551) ### Features * **area:** Intent to ship area.front ([fe315dc](fe315dc)), closes [#1543](#1543) * **axis:** Improve log scale to handle 0 ([ca6cf62](ca6cf62)), closes [#1578](#1578) * **axis:** Intent to ship axis.y2.type ([a94c25e](a94c25e)), closes [#1575](#1575)
netil
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Sep 25, 2020
# [2.1.0](2.0.3...2.1.0) (2020-09-25) ### Bug Fixes * **api:** prevent TypeError when chart already destroyed ([ce42768](ce42768)), closes [#1613](#1613) * **axis:** fix y axis clip-path coordinates ([bdf7694](bdf7694)), closes [#1572](#1572) * **bar:** Fix not firing data.onclick ([62e7a10](62e7a10)), closes [#1619](#1619) [#1620](#1620) * **bar:** fix on bar tooglip grouped false ([4bd69be](4bd69be)), closes [/github.com//issues/1663#issuecomment-690991679](https://github.com//github.com/naver/billboard.js/issues/1663/issues/issuecomment-690991679) * **grid:** Fix grid text position update ([056b565](056b565)), closes [#1592](#1592) * **interaction:** bind touch event only for rect element ([12da3e4](12da3e4)), closes [#1650](#1650) * upgrade d3-ease from 1.0.6 to 1.0.7 ([#1617](#1617)) ([4f78533](4f78533)) * **interaction:** correct draggable selection functionality ([160f873](160f873)), closes [#1642](#1642) * upgrade d3-brush from 1.1.5 to 1.1.6 ([#1605](#1605)) ([624f044](624f044)) * **interaction:** fix for data point click on mobile ([727c26f](727c26f)), closes [#1651](#1651) * **interaction:** fix retrieving event rect position ([6fc449e](6fc449e)), closes [#1670](#1670) * **legend:** Fix error for color.threshold option ([6e06629](6e06629)), closes [#1604](#1604) [#1611](#1611) * **legend:** Make legend blurry after click ([319d608](319d608)), closes [#1599](#1599) * **shape:** fix possible condition removal by transpiler ([781fb61](781fb61)), closes [#1663](#1663) * **step:** Fix rendering nullish data ([dbe7b9b](dbe7b9b)), closes [#1637](#1637) * **types:** Fix donut option types ([1917169](1917169)), closes [#1615](#1615) * **types:** Specify context for callbacks ([f3b9f26](f3b9f26)), closes [#1551](#1551) ### Features * **area:** Intent to ship area.front ([fe315dc](fe315dc)), closes [#1543](#1543) * **axis:** Improve log scale to handle 0 ([ca6cf62](ca6cf62)), closes [#1578](#1578) * **axis:** Intent to ship axis.y2.type ([a94c25e](a94c25e)), closes [#1575](#1575) * **interaction:** avoid multiple <rect> generation ([97df63a](97df63a)), closes [#1642](#1642) * **plugin:** Add JS Plugin class file ([4a20480](4a20480)), closes [#1665](#1665) * **theme:** Add new 'datalab' theme ([aba20d4](aba20d4)), closes [#241](#241)
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Description
From the support of the
logtype axis(Ref #1351, #1575), based on the logarithmic rules,0can't be expressed in axis values, becauselog 0is undefined.But, in majority of real use cases, the real datas are expressed with natural numbers including 0.
This can be improved by using
bi-symmetric log transformationto handle 0.Refs.
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