Concepts is a vector-based app, which gives you the powerful freedom to pick up and move, tweak or change any stroke at any time, even after it’s drawn. It allows you to make changes to your designs with minimal effort - instead of redrawing an entire project, you can just select what needs to be adjusted and change it. Perfect for design iterations, reorganizing mind-maps, or preparing materials for clients after feedback, Selection frees you to accomplish more.
我们有4种可以选中单独线条或多根线条的方法:


无论您通过上面提到的任何一种方式激活选取功能,您都可以看到屏幕底部弹出一个窗口,这就是您的选取菜单。选取菜单可以帮助您从目标群体中过滤出您想要选取的笔画,这样无论何时您选取笔画,该菜单也会出现在附近。

元素选择器、套索、取色器
In the Selection menu, depending on which toggle you have active, you’ll find from left to right:
On the first, left-hand toggle is your Lasso. The lasso allows you to select items by dragging your finger across or around your strokes. Whatever the blue lasso touches will be part of your selection. Lasso again to subtract from the selection.

如果您套索中内容,决定再添加一些线条,切换到元素选择器,然后继续选择。

If you tap the Selection Type toggle again, you’ll find the Item Picker. This is a single item selection mechanism that allows you to add and subtract individual strokes to your selection.

将小十字拖动到一个笔画上,若需要选取单项笔画,则松开手指;若需要选取多项笔画,使用另一只手指点击屏幕来选取笔画,然后移动到其它的笔画上,重复此项操作。
要使用元素选择器,您只需将手指或压感笔放在屏幕上,然后会在您的指尖或者笔尖出现一个小十字或加号(+)。
When you touch the crosshairs to a stroke, a circle will appear, telling you it has located a stroke. Tap the screen to validate the stroke, and lift your finger from the screen. The stroke will be selected.
如果想在您的选取中添加笔画,只需要将小十字拖动到下一个笔画上,然后点击屏幕选取它。不论您是否从屏幕上抬起手指,您都可以选取任意数量的笔画。

如果想从您的选取中移除笔画,只需要将小十字拖动到已经选取的笔画上。然后您可以看到小十字变成减号(—)。点击屏幕接受移除。

The third Selection toggle is the Color Picker. This is a vector color picker with a few more capabilities than standard color pickers in other apps. It allows you to select and remember color, brush and stroke properties, and set them to your tools.
In addition to the Selection toggle, you can activate the color picker from the Color Wheel. Open the wheel, find the eyedropper, and tap it to use it.
When Color Picker is active, drag the circle with crosshairs across the screen. You’ll see the top half of the picker changes colors and transparency according to the character of the color beneath it, while the bottom half of the picker displays your active tool’s current color. When you let go of the color picker, the new color will be assigned to the tool.
In the selection menu at the bottom of the screen, you’ll see an option for “Alpha On”. This means the color reflected will be calculated as if the color were against a transparent background. It grabs the actual flat color without applying opacity to the brush
Finally, you’ll see a tool tag floating above the color picker. This tag recalls the exact tool you used to draw each stroke in your drawing. If you’re having trouble remembering which tool you used in what color, tap the tag and the tool will be applied to your tool slot.
You can find an illustrated tutorial about the Color Picker here.

当您选取一个或者一组笔画后,您可以看到屏幕底部的选取菜单出现更多有用的切换键。

To scale and rotate the selection, use a two finger gesture away from the four corner handles of the selection.
这四个圆点为控制点,能够让您通过点击一个或两个角控制点,使用一两根手指拖动,使选取目标扭曲、歪斜或变形。这一功能非常适合调整大小和形状,使您的绘图拥有完全正确的比例。同样也有助于很迅速将笔画、文本或其他图像对齐到草图的透视图中。

选取后点击一个或两个控点调整选中内容吧。
选取框上面的是选取弹出框,拥有很多有用的功能帮助您调节笔画。

剪贴板:剪贴板将您的选取内容复制到主设备的剪贴板,就像从电子邮件或链接复制文本一样方便。在任何电子邮件、消息、文档编辑器中点击“粘贴”,可以粘贴选取内容的PNG透明图。在本App中,您可以从画廊—导入菜单—素材库中找到剪贴板,或者只需要长按屏幕。您也可从其他App中复制颜色到剪贴板上,然后可以从色轮中获取这些颜色。
锁定:锁定按钮将一项选取锁定,避免受到随后可能做出的任何其他选取和调整的影响。你可以通过重新选取并解锁或者通过改变选取菜单的锁定过滤器来使用它。
复制:您选取的所有项都可复制任意次数。只需要通过点击复制,就会创建快速精确匹配的复制项。您可以拖动复制项到新的图层,显示或隐藏原来的选取项或者再进行新的复制。
Delete. The best way to erase a vector stroke is to delete it. At this point, our erasers work as movable layer masks, so if you truly dislike a stroke and want to banish it to the far nethers, just delete it from your life and drawing. Of course, you can Undo.
编组:链状的按钮可以将所有选取项设置为一组,形成单个“素材”。这样您就可以通过单击选取整个素材,而不用重复选取多个笔画。若需要取消分组,则可以选取该素材并再次点击该按钮。
翻转和镜像:最后的两个按钮可以将您的选取项从一边翻转到另一边,或者垂直镜像,非常适合创建映像和倒影。

突出显示选择可让我们清楚看到选中的内容。当您选中内容后,选中的部分会显示原有颜色,其他的会灰掉,而且选中的部分会显示在其他内容的上面(即使该部分本来在未选中的下面)。如果关闭高亮,选中内容和未选中内容的唯一区别是选中内容有边框。

您也可使用轻推工具的同时开启突出显示选择(设置-手势栏下进行设定)。当突出显示选择开启时,所推动线条的原形态和推动后状态都会在微移开启时显示在画布上,原形态线条会轻微发灰。关闭突出显示选择后仅显示调整后的效果。
我们可以在概念画板的设置→手势中关闭高亮。