Hướng dẫn sử dụng Coreldraw x5 - part 47 doc

To change any fountain fill color, click to select it, and choose a color from the property bar selector, or click a color well on the Color Palette.. Additionally, color can be added wh

next While 256 steps is set and locked, fountain fills will display and print using the maximum capabilities of your monitor and printer resolution

Using Custom Fountain Fills

A default fountain fill features two colors, but you can add colors to make any type of

fountain fill into your own version When you make multi-colored fountain fills, the

appearance of your artwork can change dramatically The position of added colors is shown

by node positions on the dashed line guide joining the two default colors After you’ve added color markers and clicked them to select them on the object, the property bar will display their position and color, as shown here:

256 steps

20 steps

12 steps

Selected color

in multi-color

conical fill

You can add, move, and delete fountain fill colors you’ve added to a default fountain fill

type in several ways, but you must have both the object and the Interactive fill tool selected,

or you’ll wind up editing the object and not the fill To explore doing this, follow the steps in

this tutorial

Editing a Fountain Fill In-Place

1. Select the object to be filled, choose the Interactive fill tool (G), and then apply a

fountain fill by choosing Linear, Radial, Conical, or Square from the property bar

Fill Type selector

2. With a default fill applied, double-click a point on the guide between the two

existing color markers where you want to add a color marker Doing this adds a

color that is based on an average of two existing marker colors, so your custom

fountain fill probably looks the same as the default fill

3. Decide on a new intermediate color (choose one in this example on the Color

Palette), and drag a color from the color well (drag the swatch) onto your new

marker You have a three-color gradient now

4. Try a different technique to add a color marker position and a color at the same time:

drag a Color Palette well directly onto the same fountain fill guide, but at a different

location

5. To reposition an added color, click-drag it along the guide path As you do this, the

color’s node position changes, as indicated by the Node Position value on the

property bar

6. To change any fountain fill color, click to select it, and choose a color from the

property bar selector, or click a color well on the Color Palette

7. To delete an added color, right-click or double-click it on the guide To and From

color nodes can’t be deleted, but they can be recolored

Additionally, color can be added when a color node position is selected, and you choose

from the color selector to the right of the Fill Type selector on the property bar

You can drag a color marker “through” a neighboring marker to change the order

of color nodes along any fountain fill object.

Setting Fountain Fill Dialog Options

The interactive way is great for controlling fountain fills, but if you want deeper and more

precise controls, you can use the Fountain Fill dialog, shown in Figure 15-4

15

You can open the Fountain Fill dialog while a fountain fill is applied to a selected object and while using the Interactive fill tool by clicking the Edit Fill button in the property bar

Or, with your object selected and while any tool is in use, pressF11

The Fountain Fill dialog options that aren’t available while you’re using the Interactive fill tool property bar are listed and explained here:

● Color Wheel Rotation This option is available only while a two-color blend is selected You can choose to blend directly from one color to the other (the default), more or less “jumping” the hue cycle the traditional color wheel goes through, or choose Counterclockwise or Clockwise to blend between colors while cycling through

a standard color wheel’s colors, traveling around the outside edge of the wheel This might seem like a trivial option, but CorelDRAW is one of the few design programs that can shortcut through the traditional model of visible colors For example, in other applications, a fountain fill that goes from red to blue necessarily has to travel through green, somewhat muddying the fountain fill Not so if you choose Direct Blend here

others unique to this dialog

Preset options

Direct Blend

Clockwise

Counterclockwise

PostScript options for spot colors

Drag to define direction

or center.

● Interactive preview You have some manual control over where you want the center

and/or direction of a fill to take place within an object by dragging in the preview window In Figure 15-4, you can see that the radial fountain fill will be positioned beginning in the upper-right of the filled object because this is where the center has been dragged in the small preview window

● PostScript Options When a two-color fountain fill is selected with both the From

and To colors specified as spot color inks, the PostScript Options button becomes

available PostScript Options offer halftone screens of special fills to certain dot shapes Possessing PostScript level 3 capabilities, CorelDRAW features an expanded collection of screen styles including CosineDot, Cross, various Diamond styles, various Double and InvertedDoubleDot styles, various Ellipse and InvertedEllipse and other styles, Euclidean, Grid, Rhomboid, Round, Square, and Star shapes While any of these styles is selected, Frequency and Angle options are available in the PostScript Options dialog, enabling you to override default printing settings for your selected spot color inks An easy visual indicator that you are using spot colors is the small circle tick inside the chosen color swatch in the Fountain Fill box

Ill 15-10

If you’re unfamiliar with spot colors, it’s the printing process used to add a color to

packages, for example, that cannot be reproduced using standard press inks, such as that

reflective silver logo on a box of cereal See Chapter 27 for the lowdown on spot versus

process colors and for a guide to commercial printing of your CorelDRAW work

15

Tick indicates spot color.

● Presets The Presets drop-down menu includes a variety of sample fountain fill types, colors, and positions Use them as they are, or edit them to suit a specific need To select any of these, choose a name from the drop-down list While you’re browsing the alphabetical list, a preview of the highlighted preset is displayed in the fountain fill preview window in the upper-right corner of the dialog A preset can contain any of the properties associated with a two-color or custom fountain fill color

● Add/Delete Presets The two small buttons to the right of the Presets drop-down list can save you hours of custom fountain fill creation time First, the button labeled with the minus (–) symbol deletes your current selection from the list of preset fountain fills after presenting a confirmation dialog, just to ensure that you don’t delete a factory preset by accident The button labeled with a plus (+) symbol is for saving the current fountain fill as a preset

To save your selected fountain fill settings, follow these steps

Saving Your Own Fill as a Preset

1. With your custom fountain fill colors and options set in the Fountain Fill dialog, enter a name in the Presets box

2. Click the + button Your custom fountain fill is immediately saved alphabetically in the list of available presets

3. Click OK to apply the saved preset and close the dialog

4. To retrieve and apply your saved preset to fill a selected object, pressF11to open the Fountain Fill dialog, click Custom to view the Presets menu, choose your saved preset from the list, and click OK to close the dialog and apply the saved fountain fill

Applying Pattern Fills

Pattern fills are rectangular-shaped tiles that repeat vertically and horizontally to fill a closed-path object completely They come in three different varieties: Two Color, Full Color, and Bitmap, each with its own unique qualities, shown in Figure 15-5

While a pattern fill is applied, the property bar includes a host of options that can be

used to apply dramatic changes to the fill’s appearance, as shown here when the Two Color

Pattern fill has been applied to an object, and the object is currently selected:

Ill 15-11

15

Two-color pattern Full-color pattern Bitmap pattern

Edit Fill Fill Selector Color Selectors Tile Size Buttons Tile Width

Tile Height

Transform Fill With Object

Create Pattern Mirror Fill Tiles

Copy Fill Properties

In addition to altering pattern properties, the property bar has features to control the appearance of your pattern in the following ways:

● Fill Selector Use this drop-down box to choose from existing pattern fill libraries

● Front/Back Color Selectors When a two-color pattern is selected, these two selectors let you set colors other than black and white for a pattern

● Tile Size Buttons Use these buttons to set your pattern to Small, Medium, or Large preset width and height sizes

● Tile Width/Height The Width and Height sizes of your selected pattern can be set individually using these two options, each of which can be set between 0.1 and

15 inches

● Transform Fill With Object When this option is active, transformations applied

to your object will also be applied to your fill pattern This is a useful feature when you need to scale an object larger and don’t want your pattern to “shrink”!

● Mirror Fill Tiles Using this option forces a transformed pattern tile back into a seamless pattern

Two-color patterns are limited to exactly two colors, with no additional edge colors to

create anti-aliasing This means that the edges of the design can be harsh and somewhat

jaggy if you export your work to a screen resolution of 96 dpi However, if you export, for example, a TIFF copy of your work, the jagged edges you see onscreen will not appear in

the exported bitmap image

Full-color patterns are composed of vector shapes, but the pattern itself already has color applied and cannot be altered Additionally, these full-color fills cannot be extracted as vector shapes from the pattern Therefore, when making your own pattern, save a copy of your pattern to CDR file format for editing in the future, and forget about the Break Apart and Convert To Curves commands in an attempt to reduce a full-color pattern to its vector component shapes Bitmap patterns are carefully edited bitmaps; some of the presets are taken from photos, while others are paintings, and all of them are relatively small in

dimensions The difference between a full-color and a bitmap fill is that the vector-based pattern tiles for the full-color fills can be resized without losing design detail, focus, or introducing noise, but enlarging bitmap pattern tiles carries the same caveat as enlarging any bitmap—the more you enlarge it, the better your chances are that the component pixels will eventually become visible You can scale bitmaps down, but not up—computers are “smart,” but they can’t create extra visual data from nonexistent data

Controlling Pattern Fills Interactively

You can edit the look of an applied pattern fill by adjusting the interactive markers, and using the various property bar options common to all pattern styles

The interactive handles surrounding a pattern fill help you to set the tile size, offset,

skew, and rotation of the pattern To experience this firsthand, open Platonic.cdr and work

with the uncompleted group of objects on the left of the page Use the right side duplicate of

the Platonic geometry as a reference

Customizing a Pattern Fill

1. Select an object in the group at left, and then choose the Interactive fill tool (G)

2. Choose Two Color Pattern from the Fill Type selector By default, a two-color

dot-style pattern fill featuring Black as the Front color and White as the Back color is

applied to your object featuring fill markers

3 Insert the cursor in the top Edit Tiling field, and then type 1.2; then type 1.2 in the

bottom Edit Tiling field You’ve made the polka dot pattern a more pleasing size for

one of the Platonic object faces Clicking on the Small, Medium, and Large Tile

buttons performs the same thing, but without precise size control Dragging the

Rotation/Size handle while holdingCTRLto constrain the rotation angle also

changes the size

4. Drag the diamond-shaped center origin handle slightly in any direction Notice that

the center origin of the pattern changes

5. Drag the white marker, governing the Back color, up and right to skew the pattern so

it looks more like it’s on the face of the object, viewed in perspective

6. Click the white Back color marker, and then click the Back color icon on the

property bar—choose a light gray Now the face of the Platonic object looks a little

more properly shaded

7. Repeat steps 3–6, varying the Front and Back colors to complete filling in other

objects

8. To quickly complete the assignment, while the Interactive fill tool is chosen, click a

solid fill object, and then click the Copy Properties button on the property bar Then

click over a corresponding object in the completed design at right

Figure 15-6 shows the marker handles around a two-color pattern fill

15

Using Pattern Fill Dialog Options

The Pattern Fill dialog offers an alternative way to control pattern fills (see Figure 15-7) To open this dialog (which is nearly identical for two-color, full-color, and bitmap pattern fills), click the Edit Fill button in the property bar while a pattern fill type is in effect

FIGURE 15-6 The interactive markers surrounding a two-color pattern fill are there for you to

control the pattern’s colors, size, and skew

Back color/skew handle Center origin

Rotation/tile size handle

Front color/

skew handle

Interactive fill tool cursor

Here’s what each of the options in the Pattern Fill dialog controls:

● Origin The X and Y Origin options are used to offset the center of the pattern

from 0 within a range between 30 and –30 inches Positive X or Y values offset the origin right or upward, while negative values offset the origin downward or left

Using the interactive origin handle in the workspace performs the same thing

● Transform These options are Skew and Rotate, each of which is measured in degrees

Skew values range between 89 and –89 degrees, while Rotate values can be set between

360 and –360 degrees These options work in combination with each other to apply vertical and/or horizontal distortion to the fill pattern Rotation and Skew can be performed directly on an object onscreen; however, undoing a skew and rotation, and performing these distortions with precise values, is not easily done in the workspace

Ill 15-12

15

FIGURE 15-7 The Pattern Fill dialog provides an alternative method for setting pattern fill

properties

Original Rotated Rotated and Skewed